Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Financing Arrangements (Details Textual)

v3.20.2
Note 2 - Financing Arrangements (Details Textual) - USD ($)
3 Months Ended
Apr. 19, 2020
Jun. 28, 2020
Jun. 30, 2019
Mar. 29, 2020
Selling, General and Administrative Expense, Total   $ 3,380,000 $ 3,452,000  
Long-term Line of Credit, Total   0    
Letters of Credit Outstanding, Amount   0    
Line of Credit Facility, Remaining Borrowing Capacity   20,600,000   $ 20,100,000
Proceeds from (Repayments of) Notes Payable, Total   1,964,000  
Notes Payable, Current, Total   737,000  
Paycheck Protection Program CARES Act [Member]        
Proceeds from (Repayments of) Notes Payable, Total $ 1,963,800      
Notes Payable, Current, Total   737,000    
Notes Payable, Noncurrent, Total   1,200,000    
Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   $ 26,000,000    
Long-term Line of Credit, Total       2,600,000
Letters of Credit Outstanding, Amount       $ 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   1.25%    
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   2.74%    
Letter of Credit [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   $ 1,500,000    
Factoring Fees [Member]        
Selling, General and Administrative Expense, Total   $ 45,000 $ 51,000