Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Financing Arrangements (Details Textual)

v3.22.2.2
Note 7 - Financing Arrangements (Details Textual) - USD ($)
3 Months Ended
Jul. 03, 2022
May 20, 2021
Apr. 19, 2020
Jul. 03, 2022
Jun. 27, 2021
Apr. 03, 2022
Selling, General and Administrative Expense, Total       $ 3,413,000 $ 3,366,000  
Long-term Line of Credit, Total $ 0     0    
Letters of Credit Outstanding, Amount           $ 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 17,600,000     17,600,000   23,200,000
Accounts Receivable, Allowance for Credit Loss, Current 1,100,000     1,100,000   945,000
Gain (Loss) on Extinguishment of Debt, Total       0 1,985,000  
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 15,600,000     15,600,000   21,100,000
Negative Balance Outstanding Under Revolving Line of Credit [Member]            
Accounts Receivable, after Allowance for Credit Loss, Current, Total 3,000,000.0     3,000,000.0   1,500,000
Receivable from Factor, and Negative Balance on Revolving Line of Credit [Member]            
Accounts Receivable, after Allowance for Credit Loss, Current, Total 18,600,000     18,600,000   $ 22,600,000
Revolving Credit Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity $ 26,000,000.0     $ 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 2.75%     2.75%    
Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.60%          
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       $ 68,000 $ 64,000