Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Financing Arrangements (Details Textual)

v3.6.0.2
Note 2 - Financing Arrangements (Details Textual) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Jan. 01, 2017
Dec. 27, 2015
Jan. 01, 2017
Dec. 27, 2015
Apr. 03, 2016
Selling, General and Administrative Expense $ 2,576,000 $ 3,182,000 $ 8,176,000 $ 9,551,000  
Advances On Factoring Agreements     $ 0   $ 0
Daily Cash Balance, Interest Rate, Stated Percentage     1.75%    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage       0.125%  
Line of Credit Facility, Commitment Fee Amount   8,000   $ 25,000  
Line of Credit Facility, Remaining Borrowing Capacity 21,300,000   $ 21,300,000   25,600,000
Revolving Credit Facility [Member]          
Line of Credit Facility, Maximum Borrowing Capacity 26,000,000   26,000,000    
Long-term Line of Credit 0   0   0
Letters of Credit Outstanding, Amount 0   $ 0   $ 0
Revolving Credit Facility [Member] | Prime Rate [Member]          
Debt Instrument Basis Spread Below Variable Rate     0.50%    
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Debt Instrument, Basis Spread on Variable Rate     2.00%    
Letter of Credit [Member]          
Line of Credit Facility, Maximum Borrowing Capacity 1,500,000   $ 1,500,000    
Factoring Fees [Member]          
Selling, General and Administrative Expense $ 101,000 $ 124,000 $ 307,000 $ 396,000