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Investments (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 03, 2012
Sep. 01, 2012
Dec. 01, 2007
Dec. 03, 2011
Investment in Centaur Media        
Cost   $ 2,677   $ 2,677
Unrealized gain   421   328
Fair value   3,098   3,005
Investments        
Payment received as return of investment   309    
SNHC
       
Investments        
Equity interest in cost method investment (as a percent)   14.00%    
Cash distribution received 693      
Carrying value of investment       309
Payment received as return of investment 309 309 309  
Distribution payment received accounted for as investment income $ 384 $ 384