Document and Entity Information Document	3 Months Ended
	Feb. 28, 2015	Mar. 16, 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	Feb. 28, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		50,159,596