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Commitments and Contingencies (Details)
9 Months Ended 36 Months Ended
Aug. 29, 2015
USD ($)
Aug. 30, 2014
USD ($)
Nov. 29, 2014
USD ($)
Product Liability Contingency [Line Items]      
Lawsuits and claims settled 6 4 24
Settlement amounts $ 463,000 $ 190,000 $ 1,754,000
Insurance Payments Received Or Expected To Be Received $ 373,000 $ 155,000 $ 1,357,000