Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Financing Arrangements (Details Textual)

v3.21.2
Note 8 - Financing Arrangements (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
May 31, 2021
May 20, 2021
Apr. 19, 2020
Jun. 27, 2021
Jun. 28, 2020
Mar. 28, 2021
Selling, General and Administrative Expense, Total       $ 3,366,000 $ 3,380,000  
Long-term Line of Credit, Total       0   $ 0
Letters of Credit Outstanding, Amount       0   0
Line of Credit Facility, Remaining Borrowing Capacity       26,000,000.0   26,000,000.0
Accounts Receivable, after Allowance for Credit Loss, Current, Total       17,500,000   19,300,000
Accounts Receivable, Allowance for Credit Loss, Current       974,000   723,000
Proceeds from (Repayments of) Notes Payable, Total       0 1,964,000  
Gain (Loss) on Extinguishment of Debt, Total       1,985,000 0  
Paycheck Protection Program CARES Act [Member]            
Proceeds from (Repayments of) Notes Payable, Total     $ 1,963,800      
Debt Instrument, Decrease, Forgiveness   $ 1,963,800        
Interest Payable   $ 21,000        
Gain (Loss) on Extinguishment of Debt, Total       1,985,000    
Receivable Due from Factor [Member]            
Accounts Receivable, after Allowance for Credit Loss, Current, Total       16,700,000   18,600,000
Negative Balance Outstanding Under Revolving Line of Credit [Member]            
Accounts Receivable, after Allowance for Credit Loss, Current, Total       4,700,000   602,000
Receivable from Factor, and Negative Balance on Revolving Line of Credit [Member]            
Accounts Receivable, after Allowance for Credit Loss, Current, Total       21,400,000   $ 19,200,000
Revolving Credit Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity       $ 26,000,000.0    
Revolving Credit Facility [Member] | Prime Rate [Member]            
Debt Instrument Basis Spread Below Variable Rate 1.00%          
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 1.50%          
Debt Instrument, Interest Rate, Effective Percentage       1.59%    
Letter of Credit [Member]            
Line of Credit Facility, Maximum Borrowing Capacity       $ 1,500,000    
Factoring Fees [Member]            
Selling, General and Administrative Expense, Total       $ 64,000 $ 45,000