v2.4.0.6
Document and Entity Information
6 Months Ended
Jun. 30, 2012
Document and Entity Information [Abstract]  
Entity Registrant Name COHU INC
Entity Central Index Key 0000021535
Document Type 10-Q
Document Period End Date Jun. 30, 2012
Amendment Flag false
Document Fiscal Year Focus 2012
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-29
Entity Filer Category Accelerated Filer
Entity Common Stock, Shares Outstanding 24,473,068