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Note 6 - Debt (Details) (USD $)
 9 Months Ended
Sep. 29, 2013
Note 6 - Debt (Details) [Line Items]  
Line of Credit Facility, Current Borrowing Capacity $ 20,000,000
Line of Credit Facility, Maximum Borrowing Capacity 35,000,000
Line of Credit Maximum Borrowing Capacity Percentage of Eligible Accounts Receivable 85.00%
Line of Credit Maximum Borrowing Capacity Percentage of Book Value of Eligible Inventory 65.00%
Line Of Credit Maximum Borrowing Capacity Percentage Of Appraised Net Orderly Liquidation Value Of Eligible Inventory 85.00%
Line of Credit Facility, Maximum Borrowing Capacity, Borrowing Base Calculation, Minimum Amount Added to Eligible Accounts Receivable 7,500,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.375%
Fixed Charge Coverage Ratio 1:00
Line of Credit Facility, Amount Outstanding 0
Line of Credit Facility, Interest Rate at Period End 2.18%
Line of Credit Facility, Remaining Borrowing Capacity 12,781,000
Cash 10,365,000
Letters of Credit Outstanding, Amount 0
Letter of Credit [Member]
  
Note 6 - Debt (Details) [Line Items]  
Line of Credit Facility, Current Borrowing Capacity $ 1,000,000
Minimum [Member]
  
Note 6 - Debt (Details) [Line Items]  
Fixed Charge Coverage Ratio 1:15