Earnings Per Share and Stock Repurchase Activity (Details 1) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2014	Jun. 01, 2013	May 31, 2014	Jun. 01, 2013
Earnings Per Share and Stock Repurchase Activity [Abstract]
Weighted average number of shares outstanding - Basic (in shares)	50,513,588	49,826,567	50,488,651	49,830,634
Dilutive effect of stock-based arrangements (in shares)	431,502	602,308	446,117	588,536
Weighted average number of shares outstanding - Diluted (in shares)	50,945,090	50,428,875	50,934,768	50,419,170
Net earnings attributable to CLARCOR Inc.	$ 34,552	$ 33,051	$ 58,873	$ 56,513
Net earnings per share attributable to CLARCOR Inc. - Basic (in dollars per share)	$ 0.68	$ 0.66	$ 1.17	$ 1.13
Net earnings per share attributable to CLARCOR Inc. - Diluted (in dollars per share)	$ 0.68	$ 0.66	$ 1.16	$ 1.12