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Note 4 - Accounts Receivable (Tables)
12 Months Ended
Dec. 29, 2012
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
   
December 29,
2012
   
December 31,
2011
 
Billed
  $ 26,600     $ 28,460  
Accrued and unbilled
    4,761       3,143  
Work-in-progress
    13,552       8,883  
Allowance for doubtful accounts and sales discounts
    (1,207 )     (1,455 )
                 
Accounts receivable, net
  $ 43,706     $ 39,031