Document and Entity Information	9 Months Ended
Aug. 27, 2011
Entity Information [Line Items]
Entity Registrant Name	CLARCOR INC
Entity Central Index Key	0000020740
Current Fiscal Year End Date	--12-03
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Aug. 27, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding	50,230,975

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Subsection 1

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