Document and Entity Information Document	6 Months Ended
	May 30, 2015	Jun. 15, 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	May 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		50,096,733