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Accounts Receivable
3 Months Ended
Aug. 26, 2011
Accounts Receivable [Abstract]  
Accounts Receivable
4. Accounts Receivable

The components of accounts receivable are as follows:

   
August 26,
2011
  
February 25,
 2011
 
   (unaudited)    
U.S. government
 $2,081  $1,936 
U.S. commercial
  2,043   1,295 
International
  2,818   1,895 
    6,942   5,126 
Less: allowance for doubtful accounts
  (425)  (399)
   $6,517  $4,727