Document and Entity Information Document - shares	9 Months Ended
	Aug. 29, 2015	Sep. 14, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	CLARCOR INC.
Entity Central Index Key	0000020740
Current Fiscal Year End Date	--11-28
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Aug. 29, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding (in shares)		49,895,587