Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Financing Arrangements (Details Textual)

v3.19.3
Note 5 - Financing Arrangements (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Sep. 29, 2019
Sep. 30, 2018
Sep. 29, 2019
Sep. 30, 2018
Mar. 31, 2019
Selling, General and Administrative Expense, Total $ 3,476,000 $ 3,827,000 $ 6,928,000 $ 7,512,000  
Line of Credit Facility, Remaining Borrowing Capacity 21,100,000   21,100,000   $ 19,400,000
Revolving Credit Facility [Member]          
Line of Credit Facility, Maximum Borrowing Capacity 26,000,000   26,000,000    
Long-term Line of Credit, Total 0   0   4,500,000
Letters of Credit Outstanding, Amount $ 0   $ 0   $ 0
Revolving Credit Facility [Member] | Prime Rate [Member]          
Debt Instrument Basis Spread Below Variable Rate     0.50%    
Debt Instrument, Basis Spread on Variable Rate     2.00%    
Debt Instrument, Interest Rate, Effective Percentage 3.25%   3.25%    
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Debt Instrument, Basis Spread on Variable Rate     1.75%    
Debt Instrument, Interest Rate, Effective Percentage 3.84%   3.84%    
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, Total $ 62,000 $ 72,000 $ 113,000 $ 128,000