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Incentive Plans and Stock-Based Compensation (Directors' Restricted Stock Compensation) (Details) (Directors' Restricted Stock [Member], USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Nov. 29, 2014
Nov. 30, 2013
Dec. 01, 2012
Directors' Restricted Stock [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Pre-tax compensation expense $ 880us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= clc_DirectorsRestrictedStockMember		 $ 960us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= clc_DirectorsRestrictedStockMember		 $ 200us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= clc_DirectorsRestrictedStockMember
Shares of Company common stock issued under the plans 15,400us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
/ us-gaap_AwardTypeAxis
= clc_DirectorsRestrictedStockMember		 18,256us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
/ us-gaap_AwardTypeAxis
= clc_DirectorsRestrictedStockMember		 4,055us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
/ us-gaap_AwardTypeAxis
= clc_DirectorsRestrictedStockMember