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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Feb. 25, 2012
Summary of Significant Accounting Policies [Abstract]  
Changes in Company's self-insurance liabilities
                         
    2012     2011     2010  

Beginning balance

   $ 1,050     $ 1,101     $ 1,142  

Expense

     97       154       190  

Claim payments

     (191 )      (205 )      (231 ) 
   

 

 

    

 

 

    

 

 

  

Ending balance

     956       1,050       1,101  

Less current portion

     (238 )      (274 )      (297 ) 
   

 

 

    

 

 

    

 

 

  

Long-term portion

   $ 718     $ 776     $ 804