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Document and Entity Information (USD $)
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12 Months Ended | ||
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Dec. 27, 2014
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Feb. 18, 2015
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Jun. 27, 2014
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| Document And Entity Information [Abstract] | |||
| Document Type | 10-K | ||
| Amendment Flag | false | ||
| Document Period End Date | Dec. 27, 2014 | ||
| Document Fiscal Year Focus | 2014 | ||
| Document Fiscal Period Focus | FY | ||
| Trading Symbol | COHU | ||
| Entity Registrant Name | COHU INC | ||
| Entity Central Index Key | 0000021535 | ||
| Current Fiscal Year End Date | --12-27 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Common Stock, Shares Outstanding | 25,702,989 | ||
| Entity Public Float | $ 147,000,000 |
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- Definition
If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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- Definition
End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition
This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition
This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition
The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition
The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
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- Definition
A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition
Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition
Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition
State aggregate market value of voting and non-voting common equity held by non-affiliates computed by reference to price at which the common equity was last sold, or average bid and asked price of such common equity, as of the last business day of registrant's most recently completed second fiscal quarter. The public float should be reported on the cover page of the registrants form 10K. No definition available.
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- Definition
The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
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- Definition
Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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- Definition
Trading symbol of an instrument as listed on an exchange. No definition available.
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- Definition
The carrying value of deferred revenue, net of expenses, as of the balance sheet date that is expected to be recognized as such within one year or the normal operating cycle, if longer. No definition available.
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- Definition
Amount due from customers, clients, or other third-parties, or arising from transactions not separately disclosed, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. No definition available.
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- Definition
Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for current assets (assets with expected useful life shorter than one year or one operating cycle, whichever is longer) of a disposal group, including a component of the entity (discontinued operation), to be sold or that has subsequently been disposed of through sale, as of the financial statement date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
For the disposal group, including a component of the entity (discontinued operation), carrying value (net of accumulated depreciation and any write-downs) of tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of items purchased for use as components of a finished product or pieces of machinery and equipment plus any items in their natural and unrefined state. This element may be used when the reporting entity combines raw materials and purchased parts into an aggregate amount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before accumulated deprecation and depletion of real estate held for productive use and additions or improvements to real estate held for productive use, examples include, but are not limited to, walkways, driveways, fences, and parking lots. Excludes land held for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Carrying value as of the balance sheet date of current obligations (due less than one year or one operating cycle, if longer) arising from the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
For a classified balance sheet, the carrying amount as of the balance sheet date of the portion of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement that is payable after one year (or beyond the operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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Consolidated Balance Sheets (Parenthetical) (USD $)
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Dec. 27, 2014
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Dec. 28, 2013
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|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Preferred stock, par value | $ 1 | $ 1 |
| Preferred stock, shares authorized | 1,000,000 | 1,000,000 |
| Preferred stock, shares issued | 0 | 0 |
| Common stock, par value | $ 1 | $ 1 |
| Common stock, shares authorized | 60,000,000 | 60,000,000 |
| Common stock, shares issued | 25,692,000 | 25,080,000 |
| Common stock, shares outstanding | 25,692,000 | 25,080,000 |
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- Definition
Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total costs of sales and operating expenses for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. No definition available.
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| X | ||||||||||
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- Definition
Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
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| X | ||||||||||
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- Definition
The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Consolidated Statements of Comprehensive Loss (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Statement of Comprehensive Income [Abstract] | |||
| Net income (loss) | $ 8,708 | $ (33,418) | $ (12,243) |
| Other comprehensive income (loss), net of tax: | |||
| Foreign currency translation adjustments | (14,107) | 3,270 | 1,689 |
| Adjustments related to postretirement benefits, net of tax | (3,258) | 1,604 | 122 |
| Change in unrealized gain/loss on investments | (6) | (16) | |
| Other comprehensive income (loss), net of tax | (17,365) | 4,868 | 1,795 |
| Comprehensive loss | $ (8,657) | $ (28,550) | $ (10,448) |
| X | ||||||||||
|
- Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
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| X | ||||||||||
|
- Definition
This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate change in value for stock issued during the period as a result of employee stock purchase plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate value of stock related to Restricted Stock Awards issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Value of stock issued as a result of the exercise of stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Statement of Stockholders' Equity [Abstract] | |||
| Cash dividend, per share | $ 0.24 | $ 0.24 | $ 0.24 |
| X | ||||||||||
|
- Definition
Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Inventory capitalized as property, plant and equipment No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting revenue yet to be earned for which cash or other forms of consideration was received or recorded as a receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in other assets used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current assets, other noncurrent assets, or a combination of other current and noncurrent assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of pension and other (such as medical, dental and life insurance) postretirement benefit costs recognized during the period for (1) defined benefit plans (periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss) on assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments) and for (2) defined contribution plans (to the extent that a plan's defined contributions to an individual's account are to be made for periods in which that individual renders services, the net cost for a period is the contribution called for in that period; if a plan calls for contributions for periods after an individual retires or terminates, the estimated cost is accrued during the employee's service period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow resulting from the entity's share transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from sale of buildings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Summary of Significant Accounting Policies
|
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 27, 2014
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| Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Significant Accounting Policies |
Basis of Presentation – Cohu, Inc. (“Cohu”, “we”, “our” and “us”), through our wholly owned subsidiaries, is a provider of semiconductor test equipment and microwave communications systems. Our consolidated financial statements include the accounts of Cohu and our wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. Our fiscal years are based on a 52- or 53-week period ending on the last Saturday in December. Our fiscal years ended on December 27, 2014, December 28, 2013 and December 29, 2012 each consisted of 52 weeks. Risks and Uncertainties – We are subject to a number of risks and uncertainties that may significantly impact our future operating results. These risks and uncertainties are discussed under Part I, Item 1A. “Risk Factors” included in this Annual Report on Form 10-K. Understanding these risks and uncertainties is integral to the review of our consolidated financial statements. Discontinued Operations – On June 6, 2014 we completed the sale of substantially all of the assets of our video camera segment, Cohu Electronics, and its operating results are being presented as discontinued operations and all prior period amounts have been reclassified accordingly. See Note 2, “Disposal of Video Camera Segment” for additional information. Unless otherwise indicated, all amounts herein relate to continuing operations. Income (Loss) Per Share – Basic income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the reporting period. Diluted income per share includes the dilutive effect of common shares potentially issuable upon the exercise of stock options, vesting of outstanding restricted stock units and issuance of stock under our employee stock purchase plan using the treasury stock method. In loss periods, potentially dilutive securities are excluded from the per share computations due to their anti-dilutive effect. For purposes of computing diluted income per share, stock options with exercise prices that exceed the average fair market value of our common stock for the period are excluded. For the year ended December 27, 2014 approximately 1,771,000 shares of our common stock were excluded from the computation. The following table reconciles the denominators used in computing basic and diluted income (loss) per share:
Cash, Cash Equivalents and Short-term Investments – Highly liquid investments with insignificant interest rate risk and original maturities of three months or less are classified as cash and cash equivalents. Investments with maturities greater than three months are classified as short-term investments. All of our short-term investments are classified as available-for-sale and are reported at fair value, with any unrealized gains and losses, net of tax, recorded in the statement of comprehensive income (loss). We manage our cash equivalents and short-term investments as a single portfolio of highly marketable securities. We have the ability and intent, if necessary, to liquidate any of our investments in order to meet the liquidity needs of our current operations during the next 12 months. Accordingly, investments with contractual maturities greater than one year from December 27, 2014 have been classified as current assets in the accompanying consolidated balance sheets. Fair Value of Financial Instruments – The carrying amounts of our financial instruments, including cash and cash equivalents, short-term investments, accounts receivable, accounts payable and accrued expenses, approximate fair value due to the short maturities of these financial instruments. Concentration of Credit Risk – Financial instruments that potentially subject us to significant credit risk consist principally of cash equivalents, short-term investments and trade accounts receivable. We invest in a variety of financial instruments and, by policy, limit the amount of credit exposure with any one issuer.
Trade accounts receivable are presented net of allowance for doubtful accounts of $0.3 million at December 27, 2014 and $0.5 million at December 28, 2013. Our customers include semiconductor manufacturers and semiconductor test subcontractors and other customers located throughout many areas of the world. While we believe that our allowance for doubtful accounts is adequate and represents our best estimate of potential loss exposure at December 27, 2014, we will continue to monitor customer liquidity and other economic conditions, which may result in changes to our estimates regarding collectability. Inventories – Inventories are stated at the lower of cost, determined on a current average or first-in, first-out basis, or market. Cost includes labor, material and overhead costs. Determining market value of inventories involves numerous estimates and judgments including projecting average selling prices and sales volumes for future periods and costs to complete and dispose of inventory. As a result of these analyses, we record a charge to cost of sales in advance of the period when the inventory is sold when market values are below our costs. Charges to cost of sales for excess and obsolete inventories aggregated $3.9 million, $7.8 million, and $8.6 million in 2014, 2013 and 2012, respectively. Property, Plant and Equipment – Depreciation and amortization of property, plant and equipment is calculated principally on the straight-line method based on estimated useful lives of thirty to forty years for buildings, five to fifteen years for building improvements and three to ten years for machinery, equipment and software. Goodwill, Purchased Intangible Assets and Other Long-lived Assets – We evaluate goodwill for impairment annually and when an event occurs or circumstances change that indicate that the carrying value may not be recoverable. We test goodwill for impairment by first comparing the book value of net assets to the fair value of the reporting units. If the fair value is determined to be less than the book value, a second step is performed to compute the amount of impairment as the difference between the estimated fair value of goodwill and the carrying value. We estimated the fair values of our reporting units primarily using the income approach valuation methodology that includes the discounted cash flow method, taking into consideration the market approach and certain market multiples as a validation of the values derived using the discounted cash flow methodology. Forecasts of future cash flows are based on our best estimate of future net sales and operating expenses, based primarily on customer forecasts, industry trade organization data and general economic conditions. We conduct our annual goodwill impairment test as of October 1st of each year. As of October 1, 2014, we concluded there was no impairment as the estimated fair values of our semiconductor equipment and microwave communications reporting units exceeded their carrying values by approximately 35% and 17%, respectively. Subsequent to our annual goodwill impairment test, in the fourth quarter of 2014, we determined an interim analysis was required and as of December 27, 2014 concluded that the fair market value of our microwave communications reporting unit goodwill was lower than its carrying value. As a result, we recorded a non-cash, pre-tax impairment charge of $5.0 million, comprised of $3.1 million of goodwill, and $1.9 million other assets in the fourth quarter of 2014. Additional information is included in Note 3, “Microwave Communications Equipment Segment Impairment and Restructuring”. Long-lived assets, other than goodwill, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. For long-lived assets, impairment losses are only recorded if the asset’s carrying amount is not recoverable through its undiscounted, probability-weighted future cash flows. We measure the impairment loss based on the difference between the assets carrying amount and estimated fair value. Product Warranty – Product warranty costs are accrued in the period sales are recognized. Our products are generally sold with standard warranty periods, which differ by product, ranging from 12- to 36-months. Parts and labor are typically covered under the terms of the warranty agreement. Our warranty expense accruals are based on historical and estimated costs by product and configuration. From time-to-time we offer customers extended warranties beyond the standard warranty period. In those situations the revenue relating to the extended warranty is deferred at its estimated fair value and recognized on a straight-line basis over the contract period. Costs associated with our extended warranty contracts are expensed as incurred.
Income Taxes – We assess our income tax positions and record tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances and information available at the reporting dates. For those tax positions where it is more-likely-than-not that a tax benefit will be sustained, we have recorded the largest amount of tax benefit with a greater than 50 percent likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information. For those income tax positions where it is not more-likely-than-not that a tax benefit will be sustained, no tax benefit has been recognized in the financial statements. Where applicable, associated interest and penalties have also been recognized and recorded, net of federal and state tax benefits, in income tax expense. Contingencies and Litigation – We assess the probability of adverse judgments in connection with current and threatened litigation. We would accrue the cost of an adverse judgment if, in our estimation, the adverse outcome is probable and we can reasonably estimate the ultimate cost. Revenue Recognition – Our net sales are derived from the sale of products and services and are adjusted for estimated returns and allowances, which historically have been insignificant. We recognize revenue when there is persuasive evidence of an arrangement, title and risk of loss have passed, delivery has occurred or the services have been rendered, the sales price is fixed or determinable and collection of the related receivable is reasonably assured. Title and risk of loss generally pass to our customers upon shipment. In circumstances where either title or risk of loss pass upon destination or acceptance, we defer revenue recognition until such events occur. Revenue for established products that have previously satisfied a customer’s acceptance requirements and provide for full payment tied to shipment is generally recognized upon shipment and passage of title. In certain instances, customer payment terms may provide that a minority portion (e.g. 20%) of the equipment purchase price be paid only upon customer acceptance. In those situations, the majority portion (e.g. 80%) of revenue where payment is tied to shipment and the entire product cost of sale are recognized upon shipment and passage of title and the minority portion of the purchase price related to customer acceptance is deferred and recognized upon receipt of customer acceptance. In cases where a prior history of customer acceptance cannot be demonstrated or from sales where customer payment dates are not determinable and in the case of new products, revenue is deferred until customer acceptance has been received. Our post-shipment obligations typically include installation and standard warranties. The estimated fair value of installation related revenue is recognized in the period the installation is performed. Service revenue is recognized ratably over the period of the related contract. Spares and kit revenue is generally recognized upon shipment. Certain of our equipment sales are accounted for as multiple-element arrangements. A multiple-element arrangement is a transaction which may involve the delivery or performance of multiple products, services, or rights to use assets, and performance may occur at different points in time or over different periods of time. For arrangements containing multiple elements, the revenue relating to the undelivered elements is deferred using the relative selling price method utilizing estimated sales prices until delivery of the deferred elements. We limit the amount of revenue recognition for delivered elements to the amount that is not contingent on the future delivery of products or services, future performance obligations or subject to customer-specified return or adjustment. On shipments where sales are not recognized, gross profit is generally recorded as deferred profit in our consolidated balance sheet representing the difference between the receivable recorded and the inventory shipped. In certain instances where customer payments are received prior to product shipment, the customer’s payments are recorded as customer advances in our consolidated balance sheet. At December 27, 2014, we had total deferred revenue of approximately $11.3 million and deferred profit of $7.4 million. At December 28, 2013, we had total deferred revenue of approximately $7.4 million and deferred profit of $6.1 million. Advertising Costs – Advertising costs are expensed as incurred and were not material for all periods presented. Share-based Compensation – We measure and recognize all share-based compensation under the fair value method. Our estimate of share-based compensation expense requires a number of complex and subjective assumptions including our stock price volatility, employee exercise patterns (expected life of the options), future forfeitures and related tax effects. The assumptions used in calculating the fair value of share-based awards represent our best estimates, but these estimates involve inherent uncertainties and the application of management judgment. Although we believe the assumptions and estimates we have made are reasonable and appropriate, changes in assumptions could materially impact our reported financial results.
Foreign Currency Translation – Assets and liabilities of those subsidiaries that use the U.S. dollar as their functional currency are translated using exchange rates in effect at the end of the period, except for nonmonetary assets, such as inventories and property, plant and equipment, which are translated using historical exchange rates. Revenues and costs are translated using average exchange rates for the period, except for costs related to those balance sheet items that are translated using historical exchange rates. Gains and losses on foreign currency transactions are recognized as incurred. Certain of our foreign subsidiaries have designated the local currency as their functional currency and, as a result, their assets and liabilities are translated at the rate of exchange at the balance sheet date, while revenue and expenses are translated using the average exchange rate for the period. During 2014 strengthening of the U.S. dollar, against primarily the Swiss Franc and Euro resulted in approximately $2.0 million of gains being recognized in our consolidated statement of operations. Gains and losses were not significant in any of the other periods presented. Cumulative translation adjustments resulting from the translation of the financial statements are included as a separate component of stockholders’ equity. Comprehensive Income (Loss) – Our accumulated other comprehensive loss totaled approximately $10.7 million at December 27, 2014 and at December 28, 2013 our other comprehensive income totaled approximately $6.7 million and was attributed to, net of income taxes where applicable; foreign currency adjustments resulting from the translation of certain accounts into U.S. dollars, unrealized losses and gains on investments and adjustments to accumulated postretirement benefit obligations. The U.S. dollar strengthened relative to many foreign currencies as of December 27, 2014 compared to December 28, 2013. Consequently, accumulated comprehensive income decreased by $14.1 million as a result of the foreign currency translation as of December 27, 2014. Additional information related to accumulated other comprehensive income, on an after-tax basis is included in Note 12. Recent Accounting Pronouncements Recently Adopted Accounting Pronouncements – In July 2013, the Financial Accounting Standards Board (“FASB”) issued guidance on the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This amendment to previous income tax guidance clarifies that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward if such settlement is required or expected in the event the uncertain tax benefit is disallowed. In situations where a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction or the tax law of the jurisdiction does not require, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be netted with the deferred tax asset. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption is permitted. The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. The adoption of this new guidance in the first quarter of fiscal 2014 did not have a material impact on our consolidated financial position, results of operations or cash flows. In March 2013, the FASB issued guidance on a parent company’s accounting for the cumulative translation adjustment upon derecognition of a subsidiary or group of assets within a foreign entity. This new guidance requires that the parent release any related cumulative translation adjustment into net income only if the sale or transfer results in the complete or substantially complete liquidation of the foreign entity in which the subsidiary or group of assets had resided. The amendments will be effective for fiscal years and interim periods starting after December 15, 2013 with early adoption permitted. The adoption of this new guidance in the first quarter of fiscal 2014 did not have a material impact on our consolidated financial position, results of operations or cash flows. In April 2014, the FASB issued new guidance on reporting discontinued operations and disclosures of disposals of components of an entity, which amends the existing definition of a discontinued operation and requires entities to disclose additional information about disposal transactions that do not meet the discontinued operations criteria. The guidance redefines a discontinued operation as a component or group of components of an entity that has been disposed of by sale or other than by sale or is classified as held for sale and represents a strategic shift that has a major effect on an entity’s operations and financial results. The guidance is effective prospectively for disposals or components classified as held for sale in periods on or after December 15, 2014 with early adoption permitted. Cohu elected to implement this new guidance in the second quarter of fiscal 2014 and the adoption did not have a material impact on our consolidated financial position, results of operations or cash flows. Recently Issued Accounting Pronouncements – In May 2014, the FASB issued new guidance on revenue from contracts with customers. The amended guidance outlines a single comprehensive revenue model for entities to use in accounting for revenue arising from contracts with customers. The guidance supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that “an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.” Entities have the option of using either a full retrospective or modified approach to adopt the guidance. This guidance is effective for fiscal years, and interim reporting periods within those years, beginning after December 15, 2016. Early adoption is not permitted. We are still evaluating the impact this new guidance might have on our consolidated financial position, results of operations or cash flows. In August 2014, the FASB issued new guidance on going concern, which requires management to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. This guidance is effective for annual and interim periods beginning after December 15, 2016 with early adoption permitted. We do not believe the adoption of this guidance will have a material impact on our consolidated financial statements. |
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The entire disclosure for all significant accounting policies of the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disposal of Video Camera Segment (Cohu Electronics)
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Dec. 27, 2014
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| Discontinued Operations and Disposal Groups [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disposal of Video Camera Segment (Cohu Electronics) |
On June 6, 2014, we completed the sale of substantially all the assets of our video camera segment. Our decision to sell resulted from management’s determination that this industry segment was no longer a strategic fit within our organization. The sales price was $9.5 million in cash and included up to $0.5 million in contingent consideration and a working capital adjustment. In connection with the sale we incurred $0.8 million of divestiture-related costs that would not have been incurred otherwise. These costs, which are netted against the gain on disposal presented below consist of legal advisory services, success based compensation arrangements and certain other items that are incremental to normal operating charges and were expensed as incurred. Balance sheet information of our discontinued video camera segment is summarized as follows (in thousands):
Operating results of our discontinued video camera segment is summarized as follows:
In the fourth quarter of fiscal 2014 we revised the fair value contingent consideration to be earned pursuant to the definitive agreement by $0.3 million as a result of the achievement of certain milestones. This adjustment in the fair value of the contingent consideration has been included in the gain on disposal of video camera segment presented above. |
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The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Microwave Communications Equipment Segment Impairment and Restructuring
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Dec. 27, 2014
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| Restructuring and Related Activities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||
| Microwave Communications Equipment Segment Impairment and Restructuring |
Impairment of Goodwill and Other Assets We are required to assess goodwill impairment using the methodology prescribed by Accounting Standards Codification No. 350, Intangible–Goodwill and Other (“ASC 350”), which requires that we evaluate goodwill for impairment annually. We conduct our annual impairment test as of October 1st of each year and as of October 1, 2014 we previously determined there was no impairment as the estimated fair values of our semiconductor equipment and microwave communications reporting units exceeded their carrying values by approximately 35% and 17%, respectively. In addition to the annual goodwill impairment test, an interim test for impairment is required to be completed when an event occurs or circumstances change between annual tests that would more likely than not reduce the fair value of the reporting unit below its carrying value. ASC 350 requires a two-step impairment test to identify and measure any goodwill impairment loss. The first step is used to identify potential impairment and compares the fair value of a reporting unit with its carrying (book) value, including goodwill. If the fair value of the reporting unit exceeds its carrying amount, goodwill is not considered impaired and the second step of the test is not necessary. The second step of the impairment test is used to measure the amount of the impairment loss and compares the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. If the carrying amount of reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. Subsequent to the preparation of our annual impairment test, as a result of changes to the estimated market value of our microwave communications equipment reporting unit that occurred during the fourth quarter, we determined it was necessary to evaluate the recoverability of the carrying value of this segment as of December 27, 2014. For this analysis we utilized the market approach as the primary valuation method. The market approach is one of the three methodologies (along with the income approach and asset approach) that are used to estimate enterprise and equity value. The market approach employs analysis using comparable transactions in determining the value of the entity. Both public and private companies, if publicly available information exists, are considered in the market approach. Two information points commonly available – company valuation and transaction value – are used for their respective methodologies. The three main methods utilized under the market approach are: The Guideline Public Company Method, The Guideline Transactions Method and The Backsolve Method. Utilizing the results of the market approach analysis, we determined that the carrying value of our microwave communications equipment reporting unit exceeded its current fair market value and, as a result, we recorded a non-cash, pre-tax impairment charge of $5.0 million as of December 27, 2014. The asset impairments we recorded were comprised of $3.1 million of goodwill and $1.9 million of other assets. Geographic Consolidation In 2014 BMS substantially completed a geographic consolidation restructuring plan to relocate the manufacturing, engineering and administrative function of its German operation to its headquarters facility in Poway, California. In 2014 BMS recorded charges to operations totaling $0.5 million for severance and one-time termination benefits. These charges are included in cost of sales $0.1 million, research and development $0.2 million and selling, general and administrative expense $0.2 million. We anticipate that the remaining amounts accrued at December 27, 2014 will be settled in the first quarter of fiscal 2015.
The following table reconciles amounts accrued and paid under the consolidation plan (in thousands):
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The entire disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. No definition available.
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Strategic Technology Transactions, Goodwill and Purchased Intangible Assets
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Dec. 27, 2014
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| Goodwill and Intangible Assets Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Strategic Technology Transactions, Goodwill and Purchased Intangible Assets |
Acquisition of Ismeca On December 31, 2012, we acquired all of the outstanding share capital of Ismeca Semiconductor Holding SA (“Ismeca”). Ismeca, headquartered in La Chaux-de-Fonds, Switzerland, and with major operations in Malacca, Malaysia and Suzhou, China, designs, manufactures and sells turret-based test handling and back-end finishing equipment for integrated circuits, light emitting diodes (LEDs) and discrete components. The acquisition of Ismeca was a strategic transaction to expand our semiconductor total available market, extend our market leadership, expand our customer base, and broaden our product and technology offerings. The purchase price of this acquisition was approximately $90.8 million, and was funded primarily by cash reserves ($57.1 million) and certain liabilities assumed ($33.7 million). Total consideration was allocated to the assets acquired and liabilities assumed based on their estimated respective fair values as of the completion of the acquisition. Amounts allocated to intangible assets are being amortized on a straight-line basis over their useful lives as noted below. The acquisition was nontaxable and certain of the assets acquired, including goodwill and intangibles, will generally not be deductible for tax purposes. Goodwill associated with the acquisition was primarily attributable to the opportunities from the addition of Ismeca’s products and was assigned to our semiconductor equipment segment. Changes in the carrying value of goodwill by reportable segment during the years ended December 27, 2014 and December 28, 2013 were as follows (in thousands):
Purchased intangible assets, subject to amortization are as follows (in thousands):
In connection with the impairment of our microwave communications equipment reporting unit we wrote off the remaining $0.2 million net book value of Duma technology as of December 27, 2014, this impairment is included in the accumulated amortization in the table above. The amounts included in the table above at December 27, 2014, exclude approximately $2.1 million and $3.6 million, related to the trade names of Rasco and Ismeca, respectively, and at December 28, 2013 exclude approximately $2.4 million and $4.0 million, respectively. These trade names have an indefinite life and are not being amortized. Changes in the carrying values of purchased intangible assets are a result of the impact of fluctuation in currency exchange rates. Amortization expense related to purchased intangible assets was approximately $8.1 million in both 2014 and 2013 and $4.1 million in 2012. As of December 27, 2014, we expect amortization expense in future periods to be as follows: 2015 - $7.2 million; 2016 - $6.8 million; 2017 - $3.3 million; 2018 - $3.3 million 2019 - $3.3 million; and thereafter $3.4 million. |
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The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Cash, Cash Equivalents and Short-term Investments
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Dec. 27, 2014
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| Cash and Cash Equivalents [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash, Cash Equivalents and Short-term Investments |
Our cash, cash equivalents, and short-term investments consisted primarily of cash and other investment grade securities. We do not hold investment securities for trading purposes. All short-term investments are classified as available-for-sale and recorded at fair value. Investment securities are exposed to market risk due to changes in interest rates and credit risk and we monitor credit risk and attempt to mitigate exposure by making high-quality investments and through investment diversification. Gains and losses on investments are calculated using the specific-identification method and are recognized during the period in which the investment is sold or when an investment experiences an other-than-temporary decline in value. Factors that could indicate an impairment exists include, but are not limited to: earnings performance, changes in credit rating or adverse changes in the regulatory or economic environment of the asset. Gross realized gains and losses on sales of short-term investments are included in interest income. Realized gains and losses for the periods presented were not significant. Investments that we have classified as short-term, by security type, are as follows (in thousands):
Effective maturities of short-term investments at December 27, 2014, were as follows:
Our municipal securities include variable rate demand notes which can be put (sold at par) typically on a daily basis with settlement periods ranging from the same day to one week and have varying contractual maturities through 2034. These securities can be used for short-term liquidity needs and are held for limited periods of time. At December 27, 2014 these securities had amortized cost and fair value of $0.2 million and are included in “Due in one year or less” in the table above. Accounting standards pertaining to fair value measurements establish a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. When available, we use quoted market prices to determine the fair value of our investments, and they are included in Level 1. When quoted market prices are unobservable, we use quotes from independent pricing vendors based on recent trading activity and other relevant information.
The following table summarizes, by major security type, our assets that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in thousands):
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- Definition
The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Employee Benefit Plans
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| Postemployment Benefits [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Employee Benefit Plans |
Defined Contribution Retirement Plans – We have a voluntary defined contribution retirement 401(k) plan whereby we match employee contributions. In 2012 and 2013 we provided a matching contribution at 1.5% and made contributions to the plan of approximately $0.4 million in both periods. In 2014 we increased our matching contribution to 3% and made contributions to the plan of approximately $0.8 million. Defined Benefit Retirement Plans – We maintain defined benefit plans for employees located outside the U.S. for which the majority of the obligations and net periodic benefit cost were determined to be immaterial at both December 27, 2014 and December 28, 2013. As a result of the acquisition of Ismeca effective December 31, 2012, we took over the Ismeca Europe Semiconductor BVG Pension Plan in Switzerland (“the Swiss Plan”) and the following discussion relates to the Swiss Plan for the years ended December 27, 2014 and December 28, 2013. Net periodic benefit cost of the Swiss Plan was as follows:
The following table sets forth the projected benefit obligation, the fair value of plan assets, the funded status and the liability we have recorded in our consolidated balance sheet related to the Swiss Plan:
At December 27, 2014 and December 28, 2013, the Swiss Plan was underfunded and the related net liability is included in noncurrent accrued retirement benefits. Amounts recognized in accumulated other comprehensive income at December 27, 2014 related to the Swiss Plan consisted of an unrecognized net actuarial loss totaling $2.4 million compared to a net gain totaling $1.0 million at December 28, 2013. Weighted-average actuarial assumptions used to determine the benefit obligation under the Swiss Plan are as follows:
Weighted-average assumptions used to determine net periodic benefit cost of the Swiss Plan are as follows:
During 2015 employer and employee respective contributions to the Swiss Plan are expected to total $0.7 million. Estimated benefit payments are expected to be as follows: 2015 - $0.7 million; 2016 - $0.7 million; 2017 - $0.7 million; 2018 - $0.7 million; 2019 - $0.8 million; and $5.5 million thereafter through 2024. As is customary with Swiss pension plans, the assets of the plan are invested in a collective fund with multiple employers. We have no investment authority over the assets of the plan that are held and invested by a Swiss insurance company. Investment holdings are made with respect to Swiss laws and target allocations for plan assets are 76% debt securities, 11% real estate investments, 9% alternative investments, 3% cash and 1% equity securities. All assets of the plan fall within Level 2 of the fair value hierarchy. See Note 5 for a description of the levels of inputs used to determine fair value measurement.
Retiree Medical Benefits – We provide post-retirement health benefits to certain executives and directors under a noncontributory plan. The net periodic benefit income was $0.1 million in 2014 compared to a net periodic benefit cost of $0.1 million and $0.3 million in 2013 and 2012, respectively. We fund benefits as costs are incurred and as a result there are no plan assets. The weighted average discount rate used in determining the accumulated post-retirement benefit obligation was 3.8% in 2014, 4.6% in 2013 and 3.7% in 2012. Annual rates of increase of the cost of health benefits were assumed to be 8.0% in 2015. These rates were then assumed to decrease 0.5% per year to 5.0% in 2021 and remain level thereafter. A one percent increase (decrease) in health care cost trend rates would increase (decrease) the 2014 net periodic benefit cost by approximately $14,000 ($11,000) and the accumulated post-retirement benefit obligation as of December 27, 2014, by approximately $363,000 ($297,000). The following table sets forth the post-retirement benefit obligation, funded status and the liability we have recorded in our consolidated balance sheets:
Deferred Compensation – The Cohu, Inc. Deferred Compensation Plan allows certain of our officers to defer a portion of their current compensation. We have purchased life insurance policies on the participants with Cohu as the named beneficiary. Participant contributions, distributions and investment earnings and losses are accumulated in a separate account for each participant. At December 27, 2014 and December 28, 2013, the payroll liability to participants, included in accrued compensation and benefits in the consolidated balance sheet, was approximately $2.6 million and $2.4 million and the cash surrender value of the related life insurance policies included in other current assets was approximately $2.3 million and $2.1 million, respectively. Employee Stock Purchase Plan – The Cohu, Inc. 1997 Employee Stock Purchase Plan (“the Plan”) provides for the issuance of a maximum of 1,900,000 shares of our common stock. Under the Plan, eligible employees may purchase shares of common stock through payroll deductions. The price paid for the common stock is equal to 85% of the fair market value of our common stock on specified dates. In 2014, 2013, and 2012, 138,831, 163,120 and 151,812 shares, respectively, were issued under the Plan. At December 27, 2014, there were 183,591 shares reserved for issuance under the Plan. Stock Options – Under our equity incentive plans, stock options may be granted to employees, consultants and outside directors to purchase a fixed number of shares of our common stock at prices not less than 100% of the fair market value at the date of grant. Options generally vest and become exercisable after one year or in four annual increments beginning one year after the grant date and expire ten years from the grant date. At December 27, 2014, 992,666 shares were available for future equity grants under the Cohu, Inc. 2005 Equity Incentive Plan. We have historically issued new shares of Cohu common stock upon share option exercise.
Stock option activity under our share-based compensation plans was as follows:
The aggregate intrinsic value of options exercised during 2014, 2013 and 2012 was approximately $0.7 million, $0.4 million, and $0.2 million, respectively. At December 27, 2014, the aggregate intrinsic value of options outstanding, vested and expected to vest were each approximately $4.4 million and the aggregate intrinsic value of options exercisable was approximately $3.4 million. Information about stock options outstanding at December 27, 2014 is as follows (options in thousands):
Restricted Stock Units – Under our equity incentive plans, restricted stock units may be granted to employees, consultants and outside directors. Restricted stock units vest over either a one-year or a four-year period from the date of grant. Prior to vesting, restricted stock units do not have dividend equivalent rights, do not have voting rights and the shares underlying the restricted stock units are not considered issued and outstanding. Shares of our common stock will be issued on the date the restricted stock units vest. Restricted stock unit activity under our share-based compensation plans was as follows:
Equity-Based Performance Stock Units – In March 2012, we began granting equity-based performance units covering shares of our common stock to certain employees. The number of shares of stock ultimately issued will depend upon the extent to which certain financial performance goals set by our Board of Directors are met during the one-year award measurement period. Based upon the level of achievement of performance goals the number of shares we ultimately issue can range from 0% up to 150% of the number of shares under each grant which vest over 3 years from the date of initial grant. On March 25, 2014, we awarded equity-based performance stock units to senior executives with vesting that is contingent on the level of achievement of certain performance goals, market return and continued service (“market-based PSUs”). The market-based PSUs issued in 2014 are subject to a one-year performance period after which the number of market-based PSUs earned will be determined and will then be subject to certain adjustments resulting from performance of Cohu’s Relative Total Shareholder Return (“TSR”) to a selected peer group over a two year measurement period following the date of grant with the total adjustment ranging from 75% to 125% of the target amount based on the percentage by which our TSR exceeds or falls below the selected peer group. Market-based PSUs earned will vest at the rate of 50% on the second and third anniversary of their grant. We estimated the fair value of market-based PSUs using a Monte Carlo simulation model on the date of grant. Compensation expense is recognized ratably over the measurement period. We record a provision for equity-based performance units outstanding based on our current assessment of achievement of the performance goals. New shares of our common stock will be issued on the date the equity-based performance units vest. Performance based stock unit activity under our share-based compensation plans was as follows:
Share-based Compensation – We estimate the fair value of each share-based award on the grant date using the Black-Scholes and the Monte Carlo simulation valuation models. Option valuation models require the input of highly subjective assumptions and changes in the assumptions used can materially affect the grant date fair value of an award. These assumptions for the Black-Scholes model include the risk-free rate of interest, expected dividend yield, expected volatility, and the expected life of the award. The risk-free rate of interest is based on the U.S. Treasury rates appropriate for the expected term of the award as of the grant date. Expected dividends are based, primarily, on historical factors related to our common stock. Expected volatility is based on historic, weekly stock price observations of our common stock during the period immediately preceding the share-based award grant that is equal in length to the award’s expected term. We believe that historical volatility is the best estimate of future volatility. Expected life of the award is based on historical option exercise data. The Monte Carlo simulation model incorporates assumptions for the risk-free interest rate, Cohu and the selected peer group price volatility, the correlation between Cohu and the selected index, and dividend yields. Share-based compensation expense related to restricted stock unit awards is calculated based on the market price of our common stock on the date of grant, reduced by the present value of dividends expected to be paid on our common stock prior to vesting of the restricted stock unit. Estimated forfeitures are required to be included as a part of the grant date expense estimate. We used historical data to estimate expected employee behaviors related to option exercises and forfeitures. The following weighted average assumptions were used to value share-based awards granted:
Reported share-based compensation is classified in the consolidated financial statements as follows:
At December 27, 2014, excluding a reduction for forfeitures, we had approximately $1.5 million of pre-tax unrecognized compensation cost related to unvested stock options which is expected to be recognized over a weighted-average period of approximately 1.0 years. At December 27, 2014, excluding a reduction for forfeitures, we had approximately $9.6 million of pre-tax unrecognized compensation cost related to unvested restricted stock units and performance stock units which is expected to be recognized over a weighted-average period of approximately 1.6 years. |
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- Definition
The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. No definition available.
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Income Taxes
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| Income Tax Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes |
Significant components of the provision (benefit) for income taxes for continuing operations are as follows:
Income (loss) before income taxes from continuing operations consisted of the following:
Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting and tax purposes. Significant components of our deferred tax assets and liabilities were as follows:
Companies are required to assess whether a valuation allowance should be recorded against their deferred tax assets (“DTAs”) based on the consideration of all available evidence, using a “more likely than not” realization standard. The four sources of taxable income that must be considered in determining whether DTAs will be realized are, (1) future reversals of existing taxable temporary differences (i.e. offset of gross deferred tax assets against gross deferred tax liabilities); (2) taxable income in prior carryback years, if carryback is permitted under the tax law; (3) tax planning strategies and (4) future taxable income exclusive of reversing temporary differences and carryforwards. In assessing whether a valuation allowance is required, significant weight is to be given to evidence that can be objectively verified. We have evaluated our DTAs each reporting period, including an assessment of our cumulative income or loss over the prior three-year period and future periods, to determine if a valuation allowance was required. A significant negative factor in our assessment was Cohu’s three-year cumulative U.S. loss history at the end of various fiscal periods including 2014. As a result of our cumulative, three-year U.S. GAAP pretax loss from continuing operations of approximately $43.2 million at the end of 2014, and our U.S. loss in 2014, we were unable to conclude at December 27, 2014 that it was “more likely than not” that our U.S. DTAs would be realized. We will evaluate the realizability of our DTAs at the end of each quarterly reporting period in 2015 and should circumstances change it is possible the remaining valuation allowance, or a portion thereof, will be reversed in a future period. Our valuation allowance on our DTAs at December 27, 2014 and December 28, 2013 was approximately $37.0 million and $36.1 million, respectively. The remaining gross DTAs for which a valuation allowance was not recorded are realizable primarily through future reversals of existing taxable temporary differences. As the realization of DTAs is determined by tax jurisdiction, the significant deferred tax liabilities recorded as part of the 2008 acquisition of Rasco, a German corporation, and the fiscal 2013 acquisition of Ismeca, a Swiss Corporation, were not a source of taxable income in assessing the realization of our DTAs in the U.S.
The reconciliation of income tax computed at the U.S. federal statutory tax rate to the provision (benefit) for income taxes for continuing operations is as follows:
State income taxes, net of federal benefit, have been reduced by research tax credits totaling approximately $0.5 million, $0.7 million and $0.6 million in 2014, 2013 and 2012, respectively. At December 27, 2014, we had federal, state and foreign net operating loss carryforwards of approximately $15.8 million, $21.8 million and $11.8 million, respectively, that expire in various tax years beginning in 2015 through 2034 or have no expiration date. We also have federal and state tax credit carryforwards at December 27, 2014 of approximately $6.3 million and $13.2 million, respectively, some of which expire in various tax years beginning in 2015 through 2034 or have no expiration date. The federal and state loss and credit carryforwards are subject to annual limitations under Sections 382 and 383 of the Internal Revenue Code and applicable state tax law. Approximately $5.1 million of U.S. federal net operating loss carryforwards acquired in the Ismeca acquisition are expected to expire unutilized as a result of the annual limitations imposed by Section 382. As a result we have has reduced our deferred tax assets and valuation allowance related to these net operating loss carryforwards. The American Taxpayer Relief Act of 2012, which reinstated the United States federal research and development tax credit retroactively from January 1, 2012 through December 31, 2013, was not enacted into law until the first quarter of 2013. Therefore, the tax benefit from the credits for 2012 and 2013 are reflected in our 2013 income tax provision. U.S. income taxes have not been provided on approximately $32.0 million of accumulated undistributed earnings of certain foreign subsidiaries, as we currently intend to indefinitely reinvest these earnings in operations outside the U.S. It is not practicable to estimate the amount of tax that might be payable if some or all of such earnings were to be remitted. We have certain tax holidays or incentives with respect to our operations in Malaysia, Singapore and the Philippines. These holidays or incentives require compliance with certain conditions and expire at various dates through 2023. The impact of these holidays on net income was not significant in fiscal years 2014, 2013 and 2012. A reconciliation of our gross unrecognized tax benefits, excluding accrued interest and penalties, is as follows:
The 2013 gross additions for tax positions of prior years are primarily composed of additions from the Ismeca acquisition.
If the unrecognized tax benefits at December 27, 2014 are ultimately recognized, approximately $6.2 million ($6.2 million at December 28, 2013) would result in a reduction in our income tax expense and effective tax rate. We are unable to estimate the range of any reasonably possible increase or decrease in our gross unrecognized tax benefits over the next 12 months. However, we do not expect any such outcome will result in a material change to our financial condition or results of operations. We recognize interest and penalties related to unrecognized tax benefits in income tax expense. Cohu had approximately $1.4 million accrued for the payment of interest and penalties at December 27, 2014 and $1.5 million at December 28, 2013. Interest expense, net of accrued interest reversed, was not significant in 2014 and in 2013 and 2012 was approximately $(0.1) million and $0.1 million, respectively. Our U.S. federal and state income tax returns for years after 2010 and 2009, respectively, remain open to examination, subject to the statute of limitations. Net operating loss and credit carryforwards arising prior to these years are also open to examination if and when utilized. The statute of limitations for the assessment and collection of income taxes related to our foreign tax returns varies by country. In the foreign countries where we have significant operations these time periods generally range from four to ten years after the year for which the tax return is due or the tax is assessed. |
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The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Dec. 27, 2014
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| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment and Related Information |
Our reportable segments are business units that offer different products and are managed separately because each business requires different technology and marketing strategies. As discussed in Note 2, in June 2014, we sold substantially all the assets of Cohu Electronics, which comprised our video camera segment and have presented financial information for this segment as discontinued operations. Subsequent to this transaction Cohu’s remaining reportable segments are semiconductor and microwave communications equipment. The accounting policies of the reportable segments are the same as those described in the summary of significant accounting policies. We allocate resources and evaluate the performance of segments based on profit or loss from operations, excluding interest, corporate expenses and unusual gains or losses. Intersegment sales were not significant for any period. Financial information by industry segment is presented below:
The customer from the semiconductor equipment segment comprising 10% or greater of our consolidated net sales is summarized as follows:
Net sales to customers, attributed to countries based on product shipment destination, were as follows:
Geographic location of our property, plant and equipment and other long-lived assets was as follows:
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The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Stockholder Rights Plan
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| Stockholder Rights Plan |
In November, 1996, we adopted a Stockholder Rights Plan (“Rights Plan”) and declared a dividend distribution of one Preferred Stock Purchase Right (“Right”) for each share of common stock, payable to holders of record on December 3, 1996. Under the Rights Plan, each stockholder received one Right for each share of common stock owned. Each Right entitled the holder to buy one one-hundredth (1/100) of a share of Cohu’s Series A Preferred Stock for $90. As a result of the two-for-one stock split in September, 1999, each share of common stock was associated with one-half of a Right entitling the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $45. In November, 2006, we amended and restated our existing Rights Plan to extend its term to November 9, 2016 and make certain other changes. Pursuant to the amendment, to reflect the increase in the price of our common stock since the adoption of the Rights Plan, the exercise price of each Right was increased to $190. Consequently, each one-half of a Right entitles the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $95. The Rights are not presently exercisable and will only become exercisable following the occurrence of certain specified events. If these specified events occur, each Right will be adjusted to entitle its holder to receive, upon exercise, common stock having a value equal to two times the exercise price of the Right, or each Right will be adjusted to entitle its holder to receive common stock of the acquiring company having a value equal to two times the exercise price of the Right, depending on the circumstances. The Rights expire on November 9, 2016, and we may redeem them for $0.001 per Right. The Rights do not have voting or dividend rights and, until they become exercisable, have no dilutive effect on our earnings per share. |
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Stockholder Rights Plan No definition available.
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Commitments and Contingencies
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Dec. 27, 2014
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| Commitments and Contingencies Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies |
We lease certain of our facilities and equipment under non-cancelable operating leases. Rental expense was $1.9 million in 2014, $1.7 million in 2013 and $1.1 million 2012. Future minimum lease payments at December 27, 2014 are as follows:
From time-to-time we are involved in various legal proceedings, examinations by various tax authorities and claims that have arisen in the ordinary course of our businesses. The outcome of any litigation is inherently uncertain. While there can be no assurance, we do not believe at the present time that the resolution of the matters described above will have a material adverse effect on our assets, financial position or results of operations. |
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- Definition
The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Guarantees
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Dec. 27, 2014
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| Commitments and Contingencies Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Guarantees |
Changes in accrued warranty during the three-year period ended December 27, 2014 were as follows:
During the ordinary course of business, we provide standby letters of credit instruments to certain parties as required. At December 27, 2014, the maximum potential amount of future payments that we could be required to make under these standby letters of credit was approximately $0.4 million. We have not recorded any liability in connection with these arrangements beyond that required to appropriately account for the underlying transaction being guaranteed. We do not believe, based on historical experience and information currently available, that it is probable that any amounts will be required to be paid under these arrangements. |
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- Definition
The entire disclosure for commitments, contingencies, and guarantees. No definition available.
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Accumulated Other Comprehensive Income (Loss)
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Dec. 27, 2014
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| Equity [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Other Comprehensive Income (Loss) |
Components of other comprehensive income (loss), on an after-tax basis, were as follows:
Components of accumulated other comprehensive income (loss), net of tax, at the end of each period are as follows:
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- Definition
The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Related Party Transactions
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Dec. 27, 2014
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| Related Party Transactions [Abstract] | |||
| Related Party Transactions |
William E. Bendush, a member of the Cohu Board of Directors since December 8, 2011, is a member of the Board of Directors of Microsemi Corporation (“MSC”), a customer of our semiconductor equipment segment. During 2014, 2013 and 2012, total sales to MSC were approximately $1.1 million, $1.8 million and $1.1 million, respectively. |
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- Definition
The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Quarterly Financial Data (Unaudited)
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Dec. 27, 2014
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| Quarterly Financial Information Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Quarterly Financial Data (Unaudited) |
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- Definition
The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Schedule II Valuation and Qualifying Accounts
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Dec. 27, 2014
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| Valuation and Qualifying Accounts [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule II Valuation and Qualifying Accounts | COHU, INC. VALUATION AND QUALIFYING ACCOUNTS (in thousands)
In June 2014, we sold our video camera segment, Cohu Electronics and all amounts presented above have been restated to exclude the impact of this segment as it is being presented as discontinued operations.
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- Definition
The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies (Policies)
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Dec. 27, 2014
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| Accounting Policies [Abstract] | |
| Basis of Presentation | Basis of Presentation – Cohu, Inc. (“Cohu”, “we”, “our” and “us”), through our wholly owned subsidiaries, is a provider of semiconductor test equipment and microwave communications systems. Our consolidated financial statements include the accounts of Cohu and our wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. Our fiscal years are based on a 52- or 53-week period ending on the last Saturday in December. Our fiscal years ended on December 27, 2014, December 28, 2013 and December 29, 2012 each consisted of 52 weeks. |
| Risks and Uncertainties | Risks and Uncertainties – We are subject to a number of risks and uncertainties that may significantly impact our future operating results. These risks and uncertainties are discussed under Part I, Item 1A. “Risk Factors” included in this Annual Report on Form 10-K. Understanding these risks and uncertainties is integral to the review of our consolidated financial statements. |
| Discontinued Operations | Discontinued Operations – On June 6, 2014 we completed the sale of substantially all of the assets of our video camera segment, Cohu Electronics, and its operating results are being presented as discontinued operations and all prior period amounts have been reclassified accordingly. See Note 2, “Disposal of Video Camera Segment” for additional information. Unless otherwise indicated, all amounts herein relate to continuing operations. |
| Income (Loss) Per Share | Income (Loss) Per Share – Basic income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the reporting period. Diluted income per share includes the dilutive effect of common shares potentially issuable upon the exercise of stock options, vesting of outstanding restricted stock units and issuance of stock under our employee stock purchase plan using the treasury stock method. In loss periods, potentially dilutive securities are excluded from the per share computations due to their anti-dilutive effect. For purposes of computing diluted income per share, stock options with exercise prices that exceed the average fair market value of our common stock for the period are excluded. For the year ended December 27, 2014 approximately 1,771,000 shares of our common stock were excluded from the computation. |
| Cash, Cash Equivalents and Short-term Investments | Cash, Cash Equivalents and Short-term Investments – Highly liquid investments with insignificant interest rate risk and original maturities of three months or less are classified as cash and cash equivalents. Investments with maturities greater than three months are classified as short-term investments. All of our short-term investments are classified as available-for-sale and are reported at fair value, with any unrealized gains and losses, net of tax, recorded in the statement of comprehensive income (loss). We manage our cash equivalents and short-term investments as a single portfolio of highly marketable securities. We have the ability and intent, if necessary, to liquidate any of our investments in order to meet the liquidity needs of our current operations during the next 12 months. Accordingly, investments with contractual maturities greater than one year from December 27, 2014 have been classified as current assets in the accompanying consolidated balance sheets. |
| Fair Value of Financial Instruments | Fair Value of Financial Instruments – The carrying amounts of our financial instruments, including cash and cash equivalents, short-term investments, accounts receivable, accounts payable and accrued expenses, approximate fair value due to the short maturities of these financial instruments. |
| Concentration of Credit Risk | Concentration of Credit Risk – Financial instruments that potentially subject us to significant credit risk consist principally of cash equivalents, short-term investments and trade accounts receivable. We invest in a variety of financial instruments and, by policy, limit the amount of credit exposure with any one issuer.
Trade accounts receivable are presented net of allowance for doubtful accounts of $0.3 million at December 27, 2014 and $0.5 million at December 28, 2013. Our customers include semiconductor manufacturers and semiconductor test subcontractors and other customers located throughout many areas of the world. While we believe that our allowance for doubtful accounts is adequate and represents our best estimate of potential loss exposure at December 27, 2014, we will continue to monitor customer liquidity and other economic conditions, which may result in changes to our estimates regarding collectability. |
| Inventories | Inventories – Inventories are stated at the lower of cost, determined on a current average or first-in, first-out basis, or market. Cost includes labor, material and overhead costs. Determining market value of inventories involves numerous estimates and judgments including projecting average selling prices and sales volumes for future periods and costs to complete and dispose of inventory. As a result of these analyses, we record a charge to cost of sales in advance of the period when the inventory is sold when market values are below our costs. Charges to cost of sales for excess and obsolete inventories aggregated $3.9 million, $7.8 million, and $8.6 million in 2014, 2013 and 2012, respectively. |
| Property, Plant and Equipment | Property, Plant and Equipment – Depreciation and amortization of property, plant and equipment is calculated principally on the straight-line method based on estimated useful lives of thirty to forty years for buildings, five to fifteen years for building improvements and three to ten years for machinery, equipment and software. |
| Goodwill, Purchased Intangible Assets and Other Long-lived Assets | Goodwill, Purchased Intangible Assets and Other Long-lived Assets – We evaluate goodwill for impairment annually and when an event occurs or circumstances change that indicate that the carrying value may not be recoverable. We test goodwill for impairment by first comparing the book value of net assets to the fair value of the reporting units. If the fair value is determined to be less than the book value, a second step is performed to compute the amount of impairment as the difference between the estimated fair value of goodwill and the carrying value. We estimated the fair values of our reporting units primarily using the income approach valuation methodology that includes the discounted cash flow method, taking into consideration the market approach and certain market multiples as a validation of the values derived using the discounted cash flow methodology. Forecasts of future cash flows are based on our best estimate of future net sales and operating expenses, based primarily on customer forecasts, industry trade organization data and general economic conditions. We conduct our annual goodwill impairment test as of October 1st of each year. As of October 1, 2014, we concluded there was no impairment as the estimated fair values of our semiconductor equipment and microwave communications reporting units exceeded their carrying values by approximately 35% and 17%, respectively. Subsequent to our annual goodwill impairment test, in the fourth quarter of 2014, we determined an interim analysis was required and as of December 27, 2014 concluded that the fair market value of our microwave communications reporting unit goodwill was lower than its carrying value. As a result, we recorded a non-cash, pre-tax impairment charge of $5.0 million, comprised of $3.1 million of goodwill, and $1.9 million other assets in the fourth quarter of 2014. Additional information is included in Note 3, “Microwave Communications Equipment Segment Impairment and Restructuring”. Long-lived assets, other than goodwill, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. For long-lived assets, impairment losses are only recorded if the asset’s carrying amount is not recoverable through its undiscounted, probability-weighted future cash flows. We measure the impairment loss based on the difference between the assets carrying amount and estimated fair value. |
| Product Warranty | Product Warranty – Product warranty costs are accrued in the period sales are recognized. Our products are generally sold with standard warranty periods, which differ by product, ranging from 12- to 36-months. Parts and labor are typically covered under the terms of the warranty agreement. Our warranty expense accruals are based on historical and estimated costs by product and configuration. From time-to-time we offer customers extended warranties beyond the standard warranty period. In those situations the revenue relating to the extended warranty is deferred at its estimated fair value and recognized on a straight-line basis over the contract period. Costs associated with our extended warranty contracts are expensed as incurred. |
| Income Taxes | Income Taxes – We assess our income tax positions and record tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances and information available at the reporting dates. For those tax positions where it is more-likely-than-not that a tax benefit will be sustained, we have recorded the largest amount of tax benefit with a greater than 50 percent likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information. For those income tax positions where it is not more-likely-than-not that a tax benefit will be sustained, no tax benefit has been recognized in the financial statements. Where applicable, associated interest and penalties have also been recognized and recorded, net of federal and state tax benefits, in income tax expense. |
| Contingencies and Litigation | Contingencies and Litigation – We assess the probability of adverse judgments in connection with current and threatened litigation. We would accrue the cost of an adverse judgment if, in our estimation, the adverse outcome is probable and we can reasonably estimate the ultimate cost. |
| Revenue Recognition | Revenue Recognition – Our net sales are derived from the sale of products and services and are adjusted for estimated returns and allowances, which historically have been insignificant. We recognize revenue when there is persuasive evidence of an arrangement, title and risk of loss have passed, delivery has occurred or the services have been rendered, the sales price is fixed or determinable and collection of the related receivable is reasonably assured. Title and risk of loss generally pass to our customers upon shipment. In circumstances where either title or risk of loss pass upon destination or acceptance, we defer revenue recognition until such events occur. Revenue for established products that have previously satisfied a customer’s acceptance requirements and provide for full payment tied to shipment is generally recognized upon shipment and passage of title. In certain instances, customer payment terms may provide that a minority portion (e.g. 20%) of the equipment purchase price be paid only upon customer acceptance. In those situations, the majority portion (e.g. 80%) of revenue where payment is tied to shipment and the entire product cost of sale are recognized upon shipment and passage of title and the minority portion of the purchase price related to customer acceptance is deferred and recognized upon receipt of customer acceptance. In cases where a prior history of customer acceptance cannot be demonstrated or from sales where customer payment dates are not determinable and in the case of new products, revenue is deferred until customer acceptance has been received. Our post-shipment obligations typically include installation and standard warranties. The estimated fair value of installation related revenue is recognized in the period the installation is performed. Service revenue is recognized ratably over the period of the related contract. Spares and kit revenue is generally recognized upon shipment. Certain of our equipment sales are accounted for as multiple-element arrangements. A multiple-element arrangement is a transaction which may involve the delivery or performance of multiple products, services, or rights to use assets, and performance may occur at different points in time or over different periods of time. For arrangements containing multiple elements, the revenue relating to the undelivered elements is deferred using the relative selling price method utilizing estimated sales prices until delivery of the deferred elements. We limit the amount of revenue recognition for delivered elements to the amount that is not contingent on the future delivery of products or services, future performance obligations or subject to customer-specified return or adjustment. On shipments where sales are not recognized, gross profit is generally recorded as deferred profit in our consolidated balance sheet representing the difference between the receivable recorded and the inventory shipped. In certain instances where customer payments are received prior to product shipment, the customer’s payments are recorded as customer advances in our consolidated balance sheet. At December 27, 2014, we had total deferred revenue of approximately $11.3 million and deferred profit of $7.4 million. At December 28, 2013, we had total deferred revenue of approximately $7.4 million and deferred profit of $6.1 million. |
| Advertising Costs | Advertising Costs – Advertising costs are expensed as incurred and were not material for all periods presented. |
| Share-based Compensation | Share-based Compensation – We measure and recognize all share-based compensation under the fair value method. Our estimate of share-based compensation expense requires a number of complex and subjective assumptions including our stock price volatility, employee exercise patterns (expected life of the options), future forfeitures and related tax effects. The assumptions used in calculating the fair value of share-based awards represent our best estimates, but these estimates involve inherent uncertainties and the application of management judgment. Although we believe the assumptions and estimates we have made are reasonable and appropriate, changes in assumptions could materially impact our reported financial results. |
| Foreign Currency Translation | Foreign Currency Translation – Assets and liabilities of those subsidiaries that use the U.S. dollar as their functional currency are translated using exchange rates in effect at the end of the period, except for nonmonetary assets, such as inventories and property, plant and equipment, which are translated using historical exchange rates. Revenues and costs are translated using average exchange rates for the period, except for costs related to those balance sheet items that are translated using historical exchange rates. Gains and losses on foreign currency transactions are recognized as incurred. Certain of our foreign subsidiaries have designated the local currency as their functional currency and, as a result, their assets and liabilities are translated at the rate of exchange at the balance sheet date, while revenue and expenses are translated using the average exchange rate for the period. During 2014 strengthening of the U.S. dollar, against primarily the Swiss Franc and Euro resulted in approximately $2.0 million of gains being recognized in our consolidated statement of operations. Gains and losses were not significant in any of the other periods presented. Cumulative translation adjustments resulting from the translation of the financial statements are included as a separate component of stockholders’ equity. |
| Comprehensive Income (Loss) | Comprehensive Income (Loss) – Our accumulated other comprehensive loss totaled approximately $10.7 million at December 27, 2014 and at December 28, 2013 our other comprehensive income totaled approximately $6.7 million and was attributed to, net of income taxes where applicable; foreign currency adjustments resulting from the translation of certain accounts into U.S. dollars, unrealized losses and gains on investments and adjustments to accumulated postretirement benefit obligations. The U.S. dollar strengthened relative to many foreign currencies as of December 27, 2014 compared to December 28, 2013. Consequently, accumulated comprehensive income decreased by $14.1 million as a result of the foreign currency translation as of December 27, 2014. Additional information related to accumulated other comprehensive income, on an after-tax basis is included in Note 12. |
| Recent Accounting Pronouncements | Recent Accounting Pronouncements Recently Adopted Accounting Pronouncements – In July 2013, the Financial Accounting Standards Board (“FASB”) issued guidance on the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This amendment to previous income tax guidance clarifies that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward if such settlement is required or expected in the event the uncertain tax benefit is disallowed. In situations where a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction or the tax law of the jurisdiction does not require, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be netted with the deferred tax asset. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption is permitted. The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. The adoption of this new guidance in the first quarter of fiscal 2014 did not have a material impact on our consolidated financial position, results of operations or cash flows. In March 2013, the FASB issued guidance on a parent company’s accounting for the cumulative translation adjustment upon derecognition of a subsidiary or group of assets within a foreign entity. This new guidance requires that the parent release any related cumulative translation adjustment into net income only if the sale or transfer results in the complete or substantially complete liquidation of the foreign entity in which the subsidiary or group of assets had resided. The amendments will be effective for fiscal years and interim periods starting after December 15, 2013 with early adoption permitted. The adoption of this new guidance in the first quarter of fiscal 2014 did not have a material impact on our consolidated financial position, results of operations or cash flows. In April 2014, the FASB issued new guidance on reporting discontinued operations and disclosures of disposals of components of an entity, which amends the existing definition of a discontinued operation and requires entities to disclose additional information about disposal transactions that do not meet the discontinued operations criteria. The guidance redefines a discontinued operation as a component or group of components of an entity that has been disposed of by sale or other than by sale or is classified as held for sale and represents a strategic shift that has a major effect on an entity’s operations and financial results. The guidance is effective prospectively for disposals or components classified as held for sale in periods on or after December 15, 2014 with early adoption permitted. Cohu elected to implement this new guidance in the second quarter of fiscal 2014 and the adoption did not have a material impact on our consolidated financial position, results of operations or cash flows. Recently Issued Accounting Pronouncements – In May 2014, the FASB issued new guidance on revenue from contracts with customers. The amended guidance outlines a single comprehensive revenue model for entities to use in accounting for revenue arising from contracts with customers. The guidance supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that “an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.” Entities have the option of using either a full retrospective or modified approach to adopt the guidance. This guidance is effective for fiscal years, and interim reporting periods within those years, beginning after December 15, 2016. Early adoption is not permitted. We are still evaluating the impact this new guidance might have on our consolidated financial position, results of operations or cash flows. In August 2014, the FASB issued new guidance on going concern, which requires management to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. This guidance is effective for annual and interim periods beginning after December 15, 2016 with early adoption permitted. We do not believe the adoption of this guidance will have a material impact on our consolidated financial statements. |
| Segment and Related Information | Our reportable segments are business units that offer different products and are managed separately because each business requires different technology and marketing strategies. As discussed in Note 2, in June 2014, we sold substantially all the assets of Cohu Electronics, which comprised our video camera segment and have presented financial information for this segment as discontinued operations. Subsequent to this transaction Cohu’s remaining reportable segments are semiconductor and microwave communications equipment. The accounting policies of the reportable segments are the same as those described in the summary of significant accounting policies. We allocate resources and evaluate the performance of segments based on profit or loss from operations, excluding interest, corporate expenses and unusual gains or losses. Intersegment sales were not significant for any period. |
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Risks and uncertainties. No definition available.
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- Definition
Disclosure of accounting policy for advertising costs. For those costs that cannot be capitalized, discloses whether such costs are expensed as incurred or the first period in which the advertising takes place. For direct response advertising costs that are capitalized, describes those assets and the accounting policy used, including a description of the qualifying activity, the types of costs capitalized and the related amortization period. An entity also may disclose its accounting policy for cooperative advertising arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The entire disclosure for the basis of presentation and significant accounting policies concepts. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). Accounting policies describe all significant accounting policies of the reporting entity. No definition available.
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- Definition
Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for commitments and contingencies, which may include policies for recognizing and measuring loss and gain contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for comprehensive income. No definition available.
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- Definition
Disclosure of accounting policy for credit risk. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for any discontinued operations. The results of operations of a component of an entity that either has been disposed of or is classified as held for sale is reported in discontinued operations if both: (a) the operations and cash flows of the component have been (or will be) eliminated from the ongoing operations of the entity as a result of the disposal transaction and (b) the entity will not have any significant continuing involvement in the operations of the component after the disposal transaction. If the entity elects to allocate interest expense to a discontinued operation, it may disclose its accounting policy for this election and describe its method of allocation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities. No definition available.
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- Definition
Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for intangible assets. This accounting policy may address both intangible assets subject to amortization and those that are not. The following also may be disclosed: (1) a description of intangible assets (2) the estimated useful lives of those assets (3) the amortization method used (4) how the entity assesses and measures impairment of such assets (5) how future cash flows are estimated (6) how the fair values of such asset are determined. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for major classes of inventories, bases of stating inventories (for example, lower of cost or market), methods by which amounts are added and removed from inventory classes (for example, FIFO, LIFO, or average cost), loss recognition on impairment of inventories, and situations in which inventories are stated above cost. If inventory is carried at cost, this disclosure includes the nature of the cost elements included in inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. No definition available.
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- Definition
Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for segment reporting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for standard warranties including the methodology for measuring the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies (Tables)
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Dec. 27, 2014
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| Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Computation of Basic and Diluted Income (Loss) Per Share | The following table reconciles the denominators used in computing basic and diluted income (loss) per share:
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Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disposal of Video Camera Segment (Cohu Electronics) (Tables)
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Dec. 27, 2014
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| Discontinued Operations and Disposal Groups [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Balance Sheet Information and Operating Results of Discontinued Video Camera Segment | Balance sheet information of our discontinued video camera segment is summarized as follows (in thousands):
Operating results of our discontinued video camera segment is summarized as follows:
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- Definition
Tabular disclosure of disposal groups, which may include the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the classification and carrying value of the assets and liabilities comprising the disposal group, and the segment in which the disposal group was reported. Also may include the amount of adjustments to amounts previously reported in discontinued operations such as resolution of contingencies arising from the disposal transaction or the operations of the component prior to disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Microwave Communications Equipment Segment Impairment and Restructuring (Tables)
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Dec. 27, 2014
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| Summary of Reconciliation of Amounts Accrued and Paid Under Consolidation Plan | The following table reconciles amounts accrued and paid under the consolidation plan (in thousands):
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Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Strategic Technology Transactions, Goodwill and Purchased Intangible Assets (Tables)
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Dec. 27, 2014
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| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Changes in Carrying Value of Goodwill by Reportable Segment | Changes in the carrying value of goodwill by reportable segment during the years ended December 27, 2014 and December 28, 2013 were as follows (in thousands):
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| Purchased Intangible Assets, Subject to Amortization | Purchased intangible assets, subject to amortization are as follows (in thousands):
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Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Cash, Cash Equivalents and Short-term Investments (Tables)
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Dec. 27, 2014
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| Cash and Cash Equivalents [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Short-Term Investments by Security Type | Investments that we have classified as short-term, by security type, are as follows (in thousands):
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| Effective Maturities of Short-Term Investments | Effective maturities of short-term investments at December 27, 2014, were as follows:
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| Assets Measured at Fair Value on Recurring Basis | The following table summarizes, by major security type, our assets that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in thousands):
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| X | ||||||||||
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- Definition
Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. No definition available.
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Employee Benefit Plans (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 27, 2014
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| Postemployment Benefits [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Net Periodic Benefit Cost of Swiss Plan | Net periodic benefit cost of the Swiss Plan was as follows:
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| Schedule of Benefit Obligation, Fair Value of Plan Assets, Funded Status and Liability of Swiss Plan | The following table sets forth the projected benefit obligation, the fair value of plan assets, the funded status and the liability we have recorded in our consolidated balance sheet related to the Swiss Plan:
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| Schedule of Weighted-Average Actuarial Assumptions to Determine Benefit Obligation and Net Periodic Benefit Cost | Weighted-average actuarial assumptions used to determine the benefit obligation under the Swiss Plan are as follows:
Weighted-average assumptions used to determine net periodic benefit cost of the Swiss Plan are as follows:
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| Schedule of Post-Retirement Benefit Obligation to Funded Status and Liability | The following table sets forth the post-retirement benefit obligation, funded status and the liability we have recorded in our consolidated balance sheets:
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| Schedule of Stock Option Activity under Share-Based Compensation Plans | Stock option activity under our share-based compensation plans was as follows:
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| Schedule of Stock Options Outstanding and Exercisable | Information about stock options outstanding at December 27, 2014 is as follows (options in thousands):
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| Schedule of Restricted Stock Unit Activity under Share-Based Compensation Plans | Restricted stock unit activity under our share-based compensation plans was as follows:
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| Schedule of Performance Based Stock Unit Activity under Share-Based Compensation Plans | Performance based stock unit activity under our share-based compensation plans was as follows:
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| Schedule of Weighted Average Assumptions to Value Share-Based Awards Granted | The following weighted average assumptions were used to value share-based awards granted:
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| Schedule of Reported Share-Based Compensation in Consolidated Financial Statements | Reported share-based compensation is classified in the consolidated financial statements as follows:
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- Definition
Tabular disclosure of the change in the benefit obligation, fair value of plan assets, and funded status of pension plans or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of net funded status of pension plans and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the changes in outstanding nonvested performance-based units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Income Taxes (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 27, 2014
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| Income Tax Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Significant Components of Provision (Benefit) for Income Taxes for Continuing Operations | Significant components of the provision (benefit) for income taxes for continuing operations are as follows:
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| Income (Loss) Before Income Taxes from Continuing Operations | Income (loss) before income taxes from continuing operations consisted of the following:
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| Significant Components of Deferred Tax Assets and Liabilities | Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting and tax purposes. Significant components of our deferred tax assets and liabilities were as follows:
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| Reconciliation of Income Tax Computed at U.S. Federal Statutory Tax Rate to Provision (Benefit) for Income Taxes for Continuing Operations | The reconciliation of income tax computed at the U.S. federal statutory tax rate to the provision (benefit) for income taxes for continuing operations is as follows:
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| Reconciliation of Gross Unrecognized Tax Benefits | A reconciliation of our gross unrecognized tax benefits, excluding accrued interest and penalties, is as follows:
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- Details
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- Definition
Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of income before income tax between domestic and foreign jurisdictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the change in unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Segment and Related Information (Tables)
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Dec. 27, 2014
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| Segment Reporting [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Financial Information by Industry Segment | Financial information by industry segment is presented below:
|
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| Customers Comprising 10% of Consolidated Sales | The customer from the semiconductor equipment segment comprising 10% or greater of our consolidated net sales is summarized as follows:
|
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| Summary of Net Sales to Customers, Attributed to Countries | Net sales to customers, attributed to countries based on product shipment destination, were as follows:
|
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| Summary of Property, Plant and Equipment and Other Long Lived Assets in Geographical Area | Geographic location of our property, plant and equipment and other long-lived assets was as follows:
|
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| X | ||||||||||
|
- Definition
Tabular disclosure of the names of foreign countries in which material long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets are located, and amount of such long-lived assets located in that country or foreign geographic area. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. No definition available.
|
| X | ||||||||||
|
- Definition
Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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Commitments and Contingencies (Tables)
|
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 27, 2014
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| Commitments and Contingencies Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Future Minimum Lease Payments | Future minimum lease payments at December 27, 2014 are as follows:
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of a lessee's leasing arrangements including: (1) the basis on which contingent rental payments are determined, (2) the existence and terms of renewal or purchase options and escalation clauses, (3) restrictions imposed by lease arrangements, such as those concerning dividends, additional debt, and further leasing, (4) rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Disclosure may also include the specific period used to amortize material leasehold improvements made at the inception of the lease or during the lease term. Additionally, for operating leases having initial or remaining noncancelable lease terms in excess of one year: (a) future minimum rental payments required as of the date of the latest balance sheet presented, in the aggregate and for each of the five succeeding fiscal years, (b) the total of minimum rentals to be received in the future under noncancelable subleases as of the date of the latest balance sheet presented, and (c) for all operating leases, rental expense for each period for which an income statement is presented, with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Guarantees (Tables)
|
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 27, 2014
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| Commitments and Contingencies Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Changes in Accrued Warranty | Changes in accrued warranty during the three-year period ended December 27, 2014 were as follows:
|
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Accumulated Other Comprehensive Income (Loss) (Tables)
|
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 27, 2014
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| Equity [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Other Comprehensive Income (Loss) | Components of other comprehensive income (loss), on an after-tax basis, were as follows:
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| Components of Accumulated Other Comprehensive Income, Net of Tax | Components of accumulated other comprehensive income (loss), net of tax, at the end of each period are as follows:
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| X | ||||||||||
|
- Definition
Schedule Of Condensed Comprehensive Income [Table Text Block] No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the components of accumulated other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Quarterly Financial Data (Unaudited) (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 27, 2014
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| Quarterly Financial Information Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Quarterly Financial Data |
|
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| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
|
0 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Oct. 01, 2014
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Oct. 01, 2014
Semiconductor Equipment [Member]
|
Dec. 27, 2014
Microwave Communications Equipment [Member]
|
Dec. 27, 2014
Microwave Communications Equipment [Member]
|
Oct. 01, 2014
Microwave Communications Equipment [Member]
|
Dec. 27, 2014
Minimum [Member]
Buildings [Member]
|
Dec. 27, 2014
Minimum [Member]
Building Improvements [Member]
|
Dec. 27, 2014
Minimum [Member]
Machinery, Equipment and Software [Member]
|
Dec. 27, 2014
Maximum [Member]
Buildings [Member]
|
Dec. 27, 2014
Maximum [Member]
Building Improvements [Member]
|
Dec. 27, 2014
Maximum [Member]
Machinery, Equipment and Software [Member]
|
Dec. 27, 2014
Reserve for Excess and Obsolete Inventories [Member]
|
Dec. 28, 2013
Reserve for Excess and Obsolete Inventories [Member]
|
Dec. 29, 2012
Reserve for Excess and Obsolete Inventories [Member]
|
|
| Significant Accounting Policies [Line Items] | ||||||||||||||||
| Number of common stock shares excluded from computation of diluted income per share | 1,771,000 | |||||||||||||||
| Net of allowance for doubtful accounts | $ 300,000 | $ 500,000 | ||||||||||||||
| Charges to cost of sales | 3,900,000 | 7,800,000 | 8,600,000 | |||||||||||||
| Property, plant and equipment estimated useful lives | 30 years | 5 years | 3 years | 40 years | 15 years | 10 years | ||||||||||
| Goodwill impairment | 0 | 5,000,000 | 5,000,000 | 5,000,000 | ||||||||||||
| Percent of fair value exceeding carrying value | 35.00% | 17.00% | ||||||||||||||
| Impairment of goodwill | 3,055,000 | 3,055,000 | 3,055,000 | |||||||||||||
| Impairment of other assets | 1,900,000 | |||||||||||||||
| Product warrant period | 12- to 36-months | |||||||||||||||
| Largest amount of tax benefit likely of being realize upon settlement | 50.00% | |||||||||||||||
| Minority portion of purchase price payable upon customer acceptance | 20.00% | |||||||||||||||
| Majority portion of revenue recognized upon shipment and transfer of title | 80.00% | |||||||||||||||
| Deferred revenue | 11,300,000 | 7,400,000 | ||||||||||||||
| Deferred profit | 7,445,000 | 6,066,000 | ||||||||||||||
| Foreign currency gains | 2,000,000 | |||||||||||||||
| Accumulated other comprehensive income (loss) | (10,714,000) | 6,651,000 | ||||||||||||||
| Decrease in accumulated other comprehensive income | $ 14,100,000 | |||||||||||||||
| X | ||||||||||
|
- Definition
The carrying value of deferred revenue, net of expenses, as of the balance sheet date that is expected to be recognized as such within one year or the normal operating cycle, if longer. No definition available.
|
| X | ||||||||||
|
- Definition
Increase decrease in accumulated other comprehensive income. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of Revenue Recognized upon Customer Acceptance No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of Revenue Recognized upon Shipment and Passage of Title No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Tax Benefit Likely Of Being Realized Upon Settlement No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of fair value of reporting unit in excess of carrying amount. No definition available.
|
| X | ||||||||||
|
- Definition
Describes the nature of the product warranty, including the approximate term of the product warranty, how the product warranty arose, and the events or circumstances that would require the warrantor to perform under the product warranty. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Summary of Significant Accounting Policies - Computation of Basic and Diluted Income (Loss) Per Share (Detail)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Earnings Per Share [Abstract] | |||
| Weighted average common shares outstanding | 25,393 | 24,859 | 24,459 |
| Effect of dilutive stock options and restricted stock units | 613 | ||
| Weighted average diluted shares used in computing income (loss) per share | 26,006 | 24,859 | 24,459 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Disposal of Video Camera Segment (Cohu Electronics) - Additional Information (Detail) (USD $)
|
0 Months Ended | 3 Months Ended | 12 Months Ended |
|---|---|---|---|
|
Jun. 06, 2014
|
Dec. 27, 2014
|
Dec. 27, 2014
|
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | |||
| Cash received from sale of video camera segment | $ 9,500,000 | $ 10,258,000 | |
| Divestiture-related costs | 800,000 | ||
| Fair value adjustment of contingent consideration | 300,000 | ||
|
Maximum [Member]
|
|||
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | |||
| Contingent consideration from sale of video camera segment | $ 500,000 |
| X | ||||||||||
|
- Definition
Business acquisition contingent consideration receivable at fair value. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in the value of right to a contingent consideration asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of other expense attributable to disposal group. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Disposal of Video Camera Segment (Cohu Electronics) - Summary of Balance Sheet Information of Discontinued Video Camera Segment (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 28, 2013
|
Dec. 29, 2012
|
|---|---|---|
| Assets: | ||
| Accounts receivable, net | $ 2,597 | |
| Inventories | 3,568 | |
| Other current assets | 107 | |
| Total current assets | 6,272 | |
| Property, plant and equipment, net | 431 | |
| Total assets | 6,703 | 7,862 |
| Liabilities: | ||
| Accounts payable | 730 | |
| Other accrued current liabilities | 1,017 | |
| Total liabilities | $ 1,747 |
| X | ||||||||||
|
- Definition
The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for assets of a disposal group, including a component of the entity (discontinued operation), to be sold or that has been disposed of through sale, as of the financial statement date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for current assets (assets with expected useful life shorter than one year or one operating cycle, whichever is longer) of a disposal group, including a component of the entity (discontinued operation), to be sold or that has subsequently been disposed of through sale, as of the financial statement date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For the disposal group, including a component of the entity (discontinued operation), the aggregate of amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business and an amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection and net of any write-downs taken for collection uncertainty on the part of the holder, respectively. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For the disposal group, including a component of the entity (discontinued operation), carrying value of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For the disposal group, including a component of the entity (discontinued operation), carrying value of obligations incurred and payable pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include interest, rent, salaries, and utilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For the disposal group, including a component of the entity (discontinued operation), carrying amount of inventories (net of all valuation allowances and write-downs). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For the disposal group, including a component of the entity (discontinued operation), carrying amount of assets not otherwise specified in the taxonomy that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For the disposal group, including a component of the entity (discontinued operation), carrying value (net of accumulated depreciation and any write-downs) of tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of current obligations (due less than one year or one operating cycle, if longer) arising from the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Disposal of Video Camera Segment (Cohu Electronics) - Summary of Operating Results of Discontinued Video Camera Segment (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Discontinued Operations and Disposal Groups [Abstract] | |||
| Net sales | $ 5,460 | $ 15,726 | $ 14,850 |
| Operating income (loss) before income taxes | (242) | 1,317 | (121) |
| Gain on disposal of video camera segment | 4,434 | ||
| Income tax provision (benefit) | 1,319 | 475 | |
| Income from discontinued operations, net of taxes | $ 2,873 | $ 842 | $ (121) |
| X | ||||||||||
|
- Definition
Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Microwave Communications Equipment Segment Impairment and Restructuring - Additional Information (Detail) (USD $)
|
0 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Oct. 01, 2014
|
Dec. 27, 2014
|
Dec. 27, 2014
Broadcast Microwave Services [Member]
|
Dec. 27, 2014
Broadcast Microwave Services [Member]
Cost of Sales [Member]
|
Dec. 27, 2014
Broadcast Microwave Services [Member]
Selling, General and Administrative [Member]
|
Dec. 27, 2014
Broadcast Microwave Services [Member]
Research and Development [Member]
|
Oct. 01, 2014
Semiconductor Equipment [Member]
|
Dec. 27, 2014
Microwave Communications Equipment [Member]
|
Dec. 27, 2014
Microwave Communications Equipment [Member]
|
Oct. 01, 2014
Microwave Communications Equipment [Member]
|
|
| Restructuring Cost and Reserve [Line Items] | ||||||||||
| Goodwill impairment | $ 0 | $ 5,000,000 | $ 5,000,000 | $ 5,000,000 | ||||||
| Percent of fair value exceeding carrying value | 35.00% | 17.00% | ||||||||
| Impairment of goodwill | 3,055,000 | 3,055,000 | 3,055,000 | |||||||
| Impairment of other assets | 1,900,000 | |||||||||
| Severance and one time termination benefits | $ 500,000 | $ 100,000 | $ 200,000 | $ 200,000 | ||||||
| X | ||||||||||
|
- Definition
Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of fair value of reporting unit in excess of carrying amount. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Microwave Communications Equipment Segment Impairment and Restructuring - Summary of Reconciliation of Amounts Accrued and Paid Under Consolidation Plan (Detail) (Severance and Other Payroll [Member], USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 27, 2014
|
|
|
Severance and Other Payroll [Member]
|
|
| Restructuring Cost and Reserve [Line Items] | |
| Beginning balance | $ 0 |
| Costs accrued | 524 |
| Amounts paid or charged | (249) |
| Impact of currency exchange | (44) |
| Ending balance | $ 231 |
| X | ||||||||||
|
- Definition
Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of foreign currency translation adjustment increasing or decreasing the accrual for a specified type of restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Strategic Technology Transactions, Goodwill and Purchased Intangible Assets - Additional Information (Detail) (USD $)
|
0 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 27, 2014
|
Dec. 28, 2013
|
|
| Business Acquisition [Line Items] | |||
| Accumulated Amortization | $ 30,359,000 | $ 25,536,000 | |
|
Duma Technology [Member]
|
|||
| Business Acquisition [Line Items] | |||
| Accumulated Amortization | 864,000 | 408,000 | |
|
Microwave Communications Equipment [Member] | Duma Technology [Member]
|
|||
| Business Acquisition [Line Items] | |||
| Accumulated Amortization | 200,000 | ||
|
Ismeca [Member]
|
|||
| Business Acquisition [Line Items] | |||
| Purchase price of acquisition | 90,800,000 | ||
| Purchase price of acquisition, cash reserves | 57,100,000 | ||
| Purchase price of acquisition, liabilities assumed | 33,700,000 | ||
| Amounts excluded related to trade names | 3,600,000 | 4,000,000 | |
|
Rasco Technology [Member]
|
|||
| Business Acquisition [Line Items] | |||
| Amounts excluded related to trade names | $ 2,100,000 | $ 2,400,000 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of assets acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of liabilities assumed at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Strategic Technology Transactions, Goodwill and Purchased Intangible Assets - Changes in Carrying Value of Goodwill by Reportable Segment (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 27, 2014
|
Dec. 28, 2013
|
|
| Segment Reporting Information [Line Items] | |||
| Goodwill | $ 71,313 | $ 58,756 | |
| Additions net of adjustments | 10,930 | ||
| Impact of currency exchange | (5,126) | 1,627 | |
| Impairment of goodwill - (See Note 3) | (3,055) | ||
| Goodwill | 63,132 | 63,132 | 71,313 |
|
Semiconductor Equipment [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Goodwill | 67,983 | 55,520 | |
| Additions net of adjustments | 10,930 | ||
| Impact of currency exchange | (4,851) | 1,533 | |
| Goodwill | 63,132 | 63,132 | 67,983 |
|
Microwave Communications Equipment [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Goodwill | 3,330 | 3,236 | |
| Impact of currency exchange | (275) | 94 | |
| Impairment of goodwill - (See Note 3) | (3,055) | (3,055) | |
| Goodwill | $ 3,330 | ||
| X | ||||||||||
|
- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Strategic Technology Transactions, Goodwill and Purchased Intangible Assets - Purchased Intangible Assets, Subject to Amortization (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 57,723 | $ 64,468 |
| Accumulated Amortization | 30,359 | 25,536 |
|
Rasco Technology [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 29,845 | 33,689 |
| Accumulated Amortization | 22,616 | 21,319 |
| Remaining Useful Life | 2 years | |
|
Ismeca Technology [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 27,014 | 29,915 |
| Accumulated Amortization | 6,879 | 3,809 |
| Remaining Useful Life | 6 years | |
|
Duma Technology [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 864 | 864 |
| Accumulated Amortization | $ 864 | $ 408 |
| Remaining Useful Life | 0 years |
| X | ||||||||||
|
- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
|
Strategic Technology Transactions, Goodwill and Purchased Intangible Assets - Additional Information 1 (Detail) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Goodwill and Intangible Assets Disclosure [Abstract] | |||
| Amortization expense related to purchased intangible assets | $ 8,090,000 | $ 8,082,000 | $ 4,057,000 |
| Amortization of future expenses, 2015 | 7,200,000 | ||
| Amortization of future expenses, 2016 | 6,800,000 | ||
| Amortization of future expenses, 2017 | 3,300,000 | ||
| Amortization of future expenses, 2018 | 3,300,000 | ||
| Amortization of future expenses, 2019 | 3,300,000 | ||
| Amortization of future expenses, Thereafter | $ 3,400,000 | ||
| X | ||||||||||
|
- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized after the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Cash, Cash Equivalents and Short-term Investments - Short-Term Investments by Security Type (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 27, 2014
|
Dec. 28, 2013
|
|---|---|---|
| Schedule of Available-for-sale Securities [Line Items] | ||
| Amortized Cost | $ 1,155 | |
| Gross Unrealized Gains | 0 | |
| Gross Unrealized Losses | 0 | |
| Estimated Fair Value | 1,155 | 1,200 |
|
Bank Certificates of Deposit [Member]
|
||
| Schedule of Available-for-sale Securities [Line Items] | ||
| Amortized Cost | 1,000 | |
| Gross Unrealized Gains | 0 | |
| Gross Unrealized Losses | 0 | |
| Estimated Fair Value | 1,000 | |
|
Municipal Securities [Member]
|
||
| Schedule of Available-for-sale Securities [Line Items] | ||
| Amortized Cost | 155 | 1,200 |
| Gross Unrealized Gains | 0 | 0 |
| Gross Unrealized Losses | 0 | 0 |
| Estimated Fair Value | $ 155 | $ 1,200 |
| X | ||||||||||
|
- Definition
Amount of accumulated pre-tax unrealized gain before deducting pre-tax unrealized losses on investments in available-for-sale securities impacting investments. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments. No definition available.
|
| X | ||||||||||
|
- Definition
This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Cash, Cash Equivalents and Short-term Investments - Effective Maturities of Short-Term Investments (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 27, 2014
|
|---|---|
| Investments, Debt and Equity Securities [Abstract] | |
| Due in one year or less, Amortized Cost | $ 1,155 |
| Due in one year or less, Estimated Fair Value | $ 1,155 |
| X | ||||||||||
|
- Definition
Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of available-for-sale debt securities at fair value maturing in the next fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Cash, Cash Equivalents and Short-term Investments - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 27, 2014
|
|
| Schedule of Available-for-sale Securities [Line Items] | |
| Variable rate demand notes maturity year | 2034 |
| Securities amortized cost, Due in one year or less | $ 1,155 |
| Securities fair value, Due in one year or less | 1,155 |
|
Variable Rate Demand Notes [Member]
|
|
| Schedule of Available-for-sale Securities [Line Items] | |
| Securities amortized cost, Due in one year or less | 200 |
| Securities fair value, Due in one year or less | $ 200 |
| X | ||||||||||
|
- Definition
Variable rate demand notes maximum maturity year. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of available-for-sale debt securities at fair value maturing in the next fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Decrease In Assumed Healthcare Cost Trend Rate Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Estimated Future Employee Contributions In Next Fiscal Year No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Increase Decrease In Health Care Cost Trend Rate No definition available.
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable within one year (or the operating cycle, if longer). Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
After tax net amount of gain (loss) that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases (decreases) in other comprehensive income as they arise. No definition available.
|
| X | ||||||||||
|
- Definition
The interest rate used to adjust for the time value of money for the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of target allocation percentages, or range of percentages, considering the major categories of plan assets as of the latest statement of financial position presented (on a weighted-average basis for employers with more than one plan) that are pertinent to an understanding of the plan investment policies and strategies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The ultimate trend rate for health care costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Year the ultimate health care cost trend rate is expected to be reached, in CCYY format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
|
|
Employee Benefit Plans - Schedule of Net Periodic Benefit Cost of Swiss Plan (Detail) (Swiss Plan [Member], USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||
| Net Periodic Benefit Cost, Total | $ 897 | $ 972 |
|
Net Periodic Benefit Costs [Member]
|
||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Service cost | 749 | 841 |
| Interest cost | 491 | 398 |
| Expected return on assets | $ (343) | $ (267) |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Employee Benefit Plans - Schedule of Benefit Obligation, Fair Value of Plan Assets, Funded Status and Liability of Swiss Plan (Detail) (USD $)
|
12 Months Ended | |
|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
|
| Change in plan assets: | ||
| Fair value of plan assets at end of year | $ 0 | |
|
Swiss Plan [Member]
|
||
| Change in plan assets: | ||
| Funded status | (10,424,000) | (7,767,000) |
|
Swiss Plan [Member] | Projected Benefit Obligation [Member]
|
||
| Change in projected benefit obligation: | ||
| Benefit obligation at beginning of year | (23,850,000) | (23,541,000) |
| Service cost | (749,000) | (841,000) |
| Interest cost | (491,000) | (398,000) |
| Actuarial gain (loss) | (3,649,000) | 1,538,000 |
| Participant contributions | (728,000) | (751,000) |
| Benefits paid | 998,000 | 704,000 |
| Foreign currency exchange adjustment | 2,442,000 | (561,000) |
| Benefit obligation at end of year | (26,027,000) | (23,850,000) |
| Change in plan assets: | ||
| Participant contributions | (728,000) | (751,000) |
| Benefits paid | (998,000) | (704,000) |
| Foreign currency exchange adjustment | 2,442,000 | (561,000) |
|
Swiss Plan [Member] | Change in Plan Assets [Member]
|
||
| Change in projected benefit obligation: | ||
| Participant contributions | 728,000 | 751,000 |
| Benefits paid | 998,000 | 704,000 |
| Foreign currency exchange adjustment | (1,590,000) | 387,000 |
| Change in plan assets: | ||
| Fair value of plan assets at beginning of year | 16,083,000 | 15,236,000 |
| Return on assets, net of actuarial loss | 652,000 | (338,000) |
| Employer contributions | 728,000 | 751,000 |
| Participant contributions | 728,000 | 751,000 |
| Benefits paid | (998,000) | (704,000) |
| Foreign currency exchange adjustment | (1,590,000) | 387,000 |
| Fair value of plan assets at end of year | $ 15,603,000 | $ 16,083,000 |
| X | ||||||||||
|
- Definition
The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of gain (loss) from foreign currency exchange rate changes for benefit obligation for plans of a foreign operation whose functional currency is not the reporting currency. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Employee Benefit Plans - Schedule of Weighted-Average Actuarial Assumptions to Determine Benefit Obligation and Net Periodic Benefit Cost (Detail)
|
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
Dec. 27, 2014
Swiss Plan [Member]
|
Dec. 28, 2013
Swiss Plan [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||||
| Discount rate | 3.80% | 4.60% | 3.70% | 1.30% | 2.30% |
| Compensation increase | 1.80% | 2.00% | |||
| Discount rate | 2.30% | 1.80% | |||
| Rate of return on Assets | 2.30% | 1.80% | |||
| Compensation increase | 2.00% | 2.00% | |||
| X | ||||||||||
|
- Definition
The interest rate used to adjust for the time value of money for the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expected rate of compensation increases (for pay-related plans). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The interest rate used to adjust for the time value of money. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expected rate of compensation increases (for pay-related plans). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Employee Benefit Plans - Schedule of Post-Retirement Benefit Obligation to Funded Status and Liability (Detail) (USD $)
|
12 Months Ended | |
|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||
| Plan assets at end of year | $ 0 | |
|
Defined Benefit Retirement Plans [Member]
|
||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Accumulated benefit obligation at beginning of year | 2,021,000 | 2,366,000 |
| Service cost | 13,000 | 15,000 |
| Interest cost | 91,000 | 86,000 |
| Actuarial (gain) loss | 370,000 | (386,000) |
| Benefits paid | (67,000) | (60,000) |
| Accumulated benefit obligation at end of year | 2,428,000 | 2,021,000 |
| Plan assets at end of year | 0 | 0 |
| Funded status | $ (2,428,000) | $ (2,021,000) |
| X | ||||||||||
|
- Definition
For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of the Fair Value to Determine the price of common stock. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Shareholder Return Award Target No definition available.
|
| X | ||||||||||
|
- Definition
Share based compensation arrangement by share based payment award award measurement period. No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Expiration Term No definition available.
|
| X | ||||||||||
|
- Definition
Share based compensation arrangement by share based payment award percentage of shares available for issue. No definition available.
|
| X | ||||||||||
|
- Definition
Stock Issued During Period Shares Employee Stock Purchase Plans Future Issuance No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. No definition available.
|
| X | ||||||||||
|
- Definition
Unrecognized cost of unvested options awarded to employees as compensation. No definition available.
|
| X | ||||||||||
|
- Definition
Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of vesting of share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of shares issued during the period as a result of an employee stock purchase plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Employee Benefit Plans - Schedule of Stock Option Activity under Share-Based Compensation Plans (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Compensation and Retirement Disclosure [Abstract] | |||
| Outstanding, beginning of year, Shares | 3,086 | 3,113 | 3,112 |
| Granted, Shares | 10 | 470 | 437 |
| Exercised, Shares | (237) | (117) | (73) |
| Cancelled, Shares | (424) | (380) | (363) |
| Outstanding, end of year, Shares | 2,435 | 3,086 | 3,113 |
| Options exercisable at year end, Shares | 1,901 | 2,195 | 2,209 |
| Outstanding, beginning of year, Wt. Avg. Ex. Price | $ 11.93 | $ 12.62 | $ 13.01 |
| Granted, Wt. Avg. Ex. Price | $ 12.58 | $ 9.83 | $ 10.50 |
| Exercised, Wt. Avg. Ex. Price | $ 8.43 | $ 7.55 | $ 8.26 |
| Cancelled, Wt. Avg. Ex. Price | $ 15.37 | $ 16.37 | $ 14.29 |
| Outstanding, end of year, Wt. Avg. Ex. Price | $ 11.67 | $ 11.93 | $ 12.62 |
| Options exercisable at year end, Wt. Avg. Ex. Price | $ 12.08 | $ 12.46 | $ 13.52 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
|
- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Employee Benefit Plans - Schedule of Restricted Stock Unit Activity under Share-Based Compensation Plans (Detail) (Restricted Stock Units [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
|
Restricted Stock Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Outstanding, beginning of year, Units | 887 | 615 | 299 |
| Granted, Units | 497 | 531 | 462 |
| Released, Units | (315) | (223) | (108) |
| Cancelled, Units | (43) | (36) | (38) |
| Outstanding, end of year, Units | 1,026 | 887 | 615 |
| Outstanding, beginning of year, Wt. Avg. Fair Value | $ 9.46 | $ 10.54 | $ 12.98 |
| Granted, Wt. Avg. Fair Value | $ 10.07 | $ 8.80 | $ 9.57 |
| Released, Wt. Avg. Fair Value | $ 10.16 | $ 10.86 | $ 13.27 |
| Cancelled, Wt. Avg. Fair Value | $ 9.41 | $ 9.86 | $ 13.92 |
| Outstanding, end of year, Wt. Avg. Fair Value | $ 9.54 | $ 9.46 | $ 10.54 |
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Employee Benefit Plans - Schedule of Performance Based Stock Unit Activity Under Share-Based Compensation Plans (Detail) (Equity-Based Performance Stock Units [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
|
Equity-Based Performance Stock Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Outstanding, beginning of year, Units | 238 | 122 | |
| Granted, Units | 208 | 158 | 129 |
| Vested, Units | (38) | (26) | |
| Cancelled, Units | (74) | (16) | (7) |
| Outstanding, end of year, Units | 334 | 238 | 122 |
| Outstanding, beginning of year, Wt. Avg. Fair Value | $ 9.32 | $ 9.89 | |
| Granted, Wt. Avg. Fair Value | $ 11.34 | $ 9.03 | $ 9.89 |
| Vested, Wt. Avg. Fair Value | $ 9.52 | $ 9.89 | |
| Cancelled, Wt. Avg. Fair Value | $ 9.59 | $ 9.89 | $ 9.89 |
| Outstanding, end of year, Wt. Avg. Fair Value | $ 10.49 | $ 9.32 | $ 9.89 |
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Employee Benefit Plans - Schedule of Weighted Average Assumptions to Value Share-Based Awards Granted (Detail) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
|
Employee Stock Purchase Plan [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Dividend yield | 2.40% | 2.60% | 2.40% |
| Expected volatility | 35.30% | 38.40% | 43.60% |
| Risk-free interest rate | 0.10% | 0.10% | 0.10% |
| Expected term of options | 6 months | 6 months | 6 months |
| Weighted-average grant date fair value per share | $ 2.52 | $ 2.32 | $ 2.78 |
|
Employee Stock Options [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Dividend yield | 2.00% | 2.60% | 2.10% |
| Expected volatility | 42.50% | 44.90% | 46.30% |
| Risk-free interest rate | 1.90% | 1.10% | 1.20% |
| Expected term of options | 5 years 10 months 24 days | 6 years 4 months 24 days | 6 years 3 months 18 days |
| Weighted-average grant date fair value per share | $ 4.39 | $ 3.37 | $ 3.87 |
|
Restricted Stock Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Dividend yield | 2.20% | 2.50% | 2.30% |
|
Performance Stock Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Dividend yield | 2.20% | 2.50% | 2.30% |
| X | ||||||||||
|
- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Employee Benefit Plans - Schedule of Reported Share-Based Compensation in Consolidated Financial Statements (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
| Total share-based compensation | $ 6,585 | $ 5,346 | $ 4,499 |
| Income tax benefit | (204) | 0 | 0 |
| Total share-based compensation, net of tax | 6,381 | 5,346 | 4,499 |
|
Cost of Sales [Member]
|
|||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
| Total share-based compensation | 491 | 390 | 417 |
|
Research and Development [Member]
|
|||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
| Total share-based compensation | 1,901 | 1,677 | 1,347 |
|
Selling, General and Administrative [Member]
|
|||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
| Total share-based compensation | $ 4,193 | $ 3,279 | $ 2,735 |
| X | ||||||||||
|
- Definition
The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Taxes - Significant Components of Provision (Benefit) for Income Taxes for Continuing Operations (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Current: | |||
| U.S. Federal | $ (307) | $ (1,538) | $ (1,898) |
| U.S. State | 40 | 42 | (388) |
| Foreign | 4,047 | 825 | 831 |
| Total current | 3,780 | (671) | (1,455) |
| Deferred: | |||
| U.S. Federal | (1,207) | 286 | 1,890 |
| U.S. State | (17) | 26 | 186 |
| Foreign | 737 | (2,444) | (1,495) |
| Total deferred | (487) | (2,132) | 581 |
| Income tax provision (benefit) | $ 3,293 | $ (2,803) | $ (874) |
| X | ||||||||||
|
- Definition
Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Taxes - Income (Loss) Before Income Taxes from Continuing Operations (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Income Tax Disclosure [Abstract] | |||
| U.S. | $ (3,898) | $ (29,219) | $ (10,066) |
| Foreign | 13,026 | (7,844) | (2,930) |
| Income (loss) from continuing operations before taxes | $ 9,128 | $ (37,063) | $ (12,996) |
| X | ||||||||||
|
- Definition
The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 27, 2014
|
Dec. 28, 2013
|
|---|---|---|
| Deferred tax assets: | ||
| Inventory, receivable and warranty reserves | $ 9,585 | $ 13,290 |
| Net operating loss carryforwards | 8,266 | 9,070 |
| Tax credit carryforwards | 11,905 | 11,258 |
| Accrued employee benefits | 5,232 | 3,709 |
| Deferred profit | 1,091 | 839 |
| Stock-based compensation | 4,352 | 3,972 |
| Acquisition basis differences | 2,133 | 2,105 |
| Depreciation and fixed asset related | 1,001 | 831 |
| Other | 608 | 121 |
| Gross deferred tax assets | 44,173 | 45,195 |
| Less valuation allowance | (37,023) | (36,064) |
| Total deferred tax assets | 7,150 | 9,131 |
| Deferred tax liabilities: | ||
| Depreciation and fixed asset related | 2,823 | 2,909 |
| Acquisition basis differences | 10,600 | 13,193 |
| Other | 643 | 461 |
| Total deferred tax liabilities | 14,066 | 16,563 |
| Net deferred tax liabilities | $ (6,916) | $ (7,432) |
| X | ||||||||||
|
- Definition
Deferred Tax Asset Acquisition Basis Differences No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets Inventory And Warranty Reserves No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities Asset Basis Differences No definition available.
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. No definition available.
|
| X | ||||||||||
|
- Definition
The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from employee benefit costs not otherwise specified in the taxonomy, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Collection Term Range No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets Tax Credit Carry Forwards State No definition available.
|
| X | ||||||||||
|
- Definition
Income Tax Holiday Expiration Year No definition available.
|
| X | ||||||||||
|
- Definition
Pre Tax Income Loss No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
State Income Tax Reconciliation Tax Credits Research No definition available.
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The date on which the special tax status will terminate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expiration date of the tax credit carryforward, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of interest expense for an underpayment of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Taxes - Reconciliation of Income Tax Computed at U.S. Federal Statutory Tax Rate to Provision (Benefit) for Income Taxes for Continuing Operations (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Income Tax Disclosure [Abstract] | |||
| Tax provision (credit) at U.S. 35% statutory rate | $ 3,194 | $ (12,972) | $ (4,548) |
| State income taxes, net of federal tax benefit | 119 | (1,112) | (645) |
| Settlements, adjustments and releases from statute expirations | (103) | (846) | 366 |
| Change in effective tax rate for deferred balances | 346 | ||
| Federal tax credits | (244) | (1,340) | |
| Stock-based compensation on which no tax benefit provided | 160 | 168 | 177 |
| Change in valuation allowance | 1,072 | 11,283 | 2,572 |
| Foreign income taxed at different rates | (2,055) | 1,526 | (227) |
| Non-deductible goodwill impairment charge and transaction costs | 1,069 | 700 | |
| Other, net | 81 | 490 | 385 |
| Income tax provision (benefit) | $ 3,293 | $ (2,803) | $ (874) |
| X | ||||||||||
|
- Definition
Income Tax Reconciliation Settlements Adjustments And Releases From Statute Expirations No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible impairment loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible equity-based compensation costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Taxes - Reconciliation of Income Tax Computed at U.S. Federal Statutory Tax Rate to Provision (Benefit) for Income Taxes for Continuing Operations (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Income Tax Disclosure [Abstract] | |||
| U.S. Federal statutory tax rate | 35.00% | 35.00% | 35.00% |
| Tax benefit on stock-based compensation | $ 204 | $ 0 | $ 0 |
| X | ||||||||||
|
- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Income Tax Disclosure [Abstract] | |||
| Balance at beginning of year | $ 10,483 | $ 6,080 | $ 5,381 |
| Gross additions for tax positions of current year | 761 | 933 | 776 |
| Gross additions for tax positions of prior years | 365 | 3,700 | 195 |
| Reductions due to lapse of the statute of limitations | (587) | (272) | |
| Foreign exchange rate impact | (181) | (230) | |
| Balance at end of year | $ 10,841 | $ 10,483 | $ 6,080 |
| X | ||||||||||
|
- Definition
Unrecognized Tax Benefits Increase Decreases Resulting From Prior Period Tax Positions No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of decrease in unrecognized tax benefits resulting from foreign currency translation. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Corporate headquarter items not allocated to segments. Reconciliation of the total of reportable segments' amounts of revenues, measures of profits or loss, assets, or amounts for every other significant item of information disclosed, to the consolidated amount. No definition available.
|
| X | ||||||||||
|
- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for assets of a disposal group, including a component of the entity (discontinued operation), to be sold or that has been disposed of through sale, as of the financial statement date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of expenses not otherwise specified in the taxonomy for managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
|
Segment and Related Information - Financial Information by Industry Segment (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified |
0 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended |
|---|---|---|---|---|
|
Oct. 01, 2014
|
Dec. 27, 2014
|
Dec. 27, 2014
Microwave Communications Equipment [Member]
|
Dec. 27, 2014
Microwave Communications Equipment [Member]
|
|
| Segment Reporting Information [Line Items] | ||||
| Impairment of asset | $ 0 | $ 5,000 | $ 5,000 | $ 5,000 |
| X | ||||||||||
|
- Definition
Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Segment and Related Information - Additional Information (Detail) (Semiconductor Equipment [Member], Consolidated Net Sales [Member], Customer Concentration Risk [Member])
|
12 Months Ended |
|---|---|
|
Dec. 27, 2014
|
|
|
Semiconductor Equipment [Member] | Consolidated Net Sales [Member] | Customer Concentration Risk [Member]
|
|
| Segment Reporting Information [Line Items] | |
| Net sales percentage | 10.00% |
| X | ||||||||||
|
- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Segment and Related Information - Customers Comprising 10% of Consolidated Sales (Detail) (Semiconductor Equipment [Member], Consolidated Net Sales [Member], Customer Concentration Risk [Member], Intel [Member])
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
|
Semiconductor Equipment [Member] | Consolidated Net Sales [Member] | Customer Concentration Risk [Member] | Intel [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Net sales percentage | 15.00% | 17.00% | 42.00% |
| X | ||||||||||
|
- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Segment and Related Information - Summary of Net Sales to Customers, Attributed to Countries (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 27, 2014
|
Sep. 27, 2014
|
Jun. 28, 2014
|
Mar. 29, 2014
|
Dec. 28, 2013
|
Sep. 28, 2013
|
Jun. 29, 2013
|
Mar. 30, 2013
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | $ 96,168 | $ 94,441 | $ 77,850 | $ 64,864 | $ 61,135 | $ 55,977 | $ 62,235 | $ 52,227 | $ 333,323 | $ 231,574 | $ 206,312 |
|
United States [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 78,243 | 45,773 | 45,749 | ||||||||
|
Malaysia [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 73,861 | 51,652 | 40,326 | ||||||||
|
China [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 51,410 | 37,621 | 31,970 | ||||||||
|
Philippines [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 28,670 | 26,563 | 22,507 | ||||||||
|
Costa Rica [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 9,714 | 5,127 | 22,934 | ||||||||
|
Rest of the World [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | $ 91,425 | $ 64,838 | $ 42,826 | ||||||||
| X | ||||||||||
|
- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Stockholder Rights Plan - Additional Information (Detail)
|
1 Months Ended | ||
|---|---|---|---|
|
Nov. 30, 2006
|
Sep. 30, 1999
|
Nov. 30, 1996
|
|
| Class of Stock [Line Items] | |||
| Dividends payable, date of record | Dec. 03, 1996 | ||
| Effect of stock split | Each one-half of a Right entitles the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $95. | As a result of the two-for-one stock split in September, 1999, each share of common stock was associated with one-half of a Right entitling the holder to purchase one two-hundredth (1/200) of a share of Series A Preferred Stock for $45 | Each Right entitled the holder to buy one one-hundredth (1/100) of a share of Cohu's Series A Preferred Stock for $90 |
| Stockholder Rights Plan, expiration date | Nov. 09, 2016 | ||
| Stockholder Rights Plan, redemption price per Right | 0.001 | ||
| Stock split ratio | 2 | ||
|
(1/100th) [Member]
|
|||
| Class of Stock [Line Items] | |||
| Preferred Stock purchase price upon exercise of Rights | 190 | 90 | |
|
(1/200th) [Member]
|
|||
| Class of Stock [Line Items] | |||
| Preferred Stock purchase price upon exercise of Rights | 95 | 45 | |
| X | ||||||||||
|
- Definition
Equity Conversion Right Redemption Option Price Per Right No definition available.
|
| X | ||||||||||
|
- Definition
Stock Split Description No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Date the warrants or rights are exercisable, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. No definition available.
|
| X | ||||||||||
|
- Definition
Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Commitments and Contingencies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Commitments and Contingencies Disclosure [Abstract] | |||
| Rental expense | $ 1.9 | $ 1.7 | $ 1.1 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
|
|
Commitments and Contingencies - Future Minimum Lease Payments (Detail) (Non-Cancelable Operating Leases [Member], USD $)
In Thousands, unless otherwise specified |
Dec. 27, 2014
|
|---|---|
|
Non-Cancelable Operating Leases [Member]
|
|
| Schedule Of Future Minimum Rental Payments For Operating Leases [Line Items] | |
| 2015 | $ 1,270 |
| 2016 | 1,111 |
| 2017 | 958 |
| 2018 | 676 |
| 2019 | 385 |
| Thereafter | 1,155 |
| Total | $ 5,555 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Guarantees - Changes in Accrued Warranty (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Product Warranties Disclosures [Abstract] | |||
| Beginning balance | $ 5,155 | $ 4,602 | $ 6,704 |
| Warranty accruals | 6,513 | 5,403 | 4,162 |
| Warranty payments | (5,484) | (6,683) | (6,264) |
| Warranty liability assumed | 1,833 | ||
| Ending balance | $ 6,184 | $ 5,155 | $ 4,602 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Total liability for standard and extended product warranties acquired in a business acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Guarantees - Additional Information (Detail) (USD $)
|
Dec. 27, 2014
|
|---|---|
| Guarantees [Abstract] | |
| Maximum potential amount of future payments under standby letters of credit | $ 400,000 |
| Liability under standby letters of credit | $ 0 |
| X | ||||||||||
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- Definition
The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount before tax, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans, attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of tax (expense) benefit, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans, attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, on foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount before tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income, Net of Tax (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 27, 2014
|
Dec. 28, 2013
|
|---|---|---|
| Statement of Comprehensive Income [Abstract] | ||
| Accumulated net currency translation adjustments | $ (8,327) | $ 5,780 |
| Accumulated net adjustments related to postretirement benefits | (2,387) | 871 |
| Total accumulated other comprehensive income | $ (10,714) | $ 6,651 |
| X | ||||||||||
|
- Definition
The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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|
Related Party Transactions - Additional Information (Detail) (MSC [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
|
MSC [Member]
|
|||
| Related Party Transaction [Line Items] | |||
| Sales to related party | $ 1.1 | $ 1.8 | $ 1.1 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Quarterly Financial Data - Summary of Quarterly Financial Data (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 27, 2014
|
Sep. 27, 2014
|
Jun. 28, 2014
|
Mar. 29, 2014
|
Dec. 28, 2013
|
Sep. 28, 2013
|
Jun. 29, 2013
|
Mar. 30, 2013
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Net sales | $ 96,168 | $ 94,441 | $ 77,850 | $ 64,864 | $ 61,135 | $ 55,977 | $ 62,235 | $ 52,227 | $ 333,323 | $ 231,574 | $ 206,312 |
| Gross profit | 31,375 | 33,176 | 25,484 | 22,200 | 17,247 | 12,684 | 19,515 | 13,942 | 112,235 | 63,388 | |
| Income (loss) from continuing operations | 1,337 | 6,921 | 931 | (3,354) | (6,578) | (11,113) | (4,334) | (12,235) | 5,835 | (34,260) | (12,122) |
| Net income (loss) | $ 374 | $ 7,519 | $ 4,163 | $ (3,348) | $ (6,450) | $ (10,820) | $ (4,045) | $ (12,103) | $ 8,708 | $ (33,418) | $ (12,243) |
| Basic: | |||||||||||
| Income (loss) from continuing operations | $ 0.05 | $ 0.28 | $ 0.04 | $ (0.13) | $ (0.27) | $ (0.44) | $ (0.17) | $ (0.50) | $ 0.23 | $ (1.37) | $ (0.50) |
| Net income (loss) | $ 0.01 | $ 0.30 | $ 0.16 | $ (0.13) | $ (0.26) | $ (0.43) | $ (0.16) | $ (0.49) | $ 0.34 | $ (1.34) | $ (0.50) |
| Diluted: | |||||||||||
| Income (loss) from continuing operations | $ 0.05 | $ 0.27 | $ 0.04 | $ (0.13) | $ (0.27) | $ (0.44) | $ (0.17) | $ (0.50) | $ 0.22 | $ (1.37) | $ (0.50) |
| Net income (loss) | $ 0.01 | $ 0.29 | $ 0.16 | $ (0.13) | $ (0.26) | $ (0.43) | $ 0.43 | $ (0.49) | $ 0.33 | $ (1.34) | $ (0.50) |
| X | ||||||||||
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Schedule II Valuation and Qualifying Accounts (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 27, 2014
|
Dec. 28, 2013
|
Dec. 29, 2012
|
|
|
Allowance for Doubtful Accounts [Member]
|
|||
| Valuation and Qualifying Accounts Disclosure [Line Items] | |||
| Balance at Beginning of Year | $ 543 | $ 288 | $ 463 |
| Additions Not Charged to Expense | (5) | 354 | 1 |
| Additions (Reductions) Charged (Credited) to Expense | (228) | 134 | (82) |
| Deductions/Write-offs | 27 | 233 | 94 |
| Balance at End of Year | 283 | 543 | 288 |
|
Reserve for Excess and Obsolete Inventories [Member]
|
|||
| Valuation and Qualifying Accounts Disclosure [Line Items] | |||
| Balance at Beginning of Year | 37,795 | 27,155 | 24,552 |
| Additions Not Charged to Expense | (821) | 7,422 | 610 |
| Additions (Reductions) Charged (Credited) to Expense | 3,876 | 7,760 | 8,621 |
| Deductions/Write-offs | 11,005 | 4,542 | 6,628 |
| Balance at End of Year | $ 29,845 | $ 37,795 | $ 27,155 |
| X | ||||||||||
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- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to accounts other than costs and expenses in a given period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Details
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|
Schedule II Valuation and Qualifying Accounts (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 28, 2013
|
|
|
Allowance for Doubtful Accounts [Member]
|
|
| Valuation and Qualifying Accounts Disclosure [Line Items] | |
| Amount included from Ismeca Acquisition and foreign currency impact | $ 0.4 |
|
Reserve for Excess and Obsolete Inventories [Member]
|
|
| Valuation and Qualifying Accounts Disclosure [Line Items] | |
| Amount included from Ismeca Acquisition and foreign currency impact | $ 6.8 |
| X | ||||||||||
|
- Definition
Amount Includes from Acquisition and Foreign Currency Impact No definition available.
|
| X | ||||||||||
|
- Details
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