Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Financing Arrangements (Details Textual)

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Note 7 - Financing Arrangements (Details Textual) - USD ($)
3 Months Ended
Jun. 30, 2024
Jul. 02, 2023
Jul. 19, 2024
Mar. 31, 2024
Selling, General and Administrative Expense $ 4,263,000 $ 4,046,000    
Long-Term Line of Credit 1,500,000     $ 8,100,000
Letters of Credit Outstanding, Amount       0
Line of Credit Facility, Remaining Borrowing Capacity 17,600,000     19,200,000
Accounts Receivable, after Allowance for Credit Loss, Current 15,800,000     22,400,000
Accounts Receivable, Allowance for Credit Loss, Current 1,600,000     1,500,000
Receivable Due from Factor [Member]        
Accounts Receivable, Allowance for Credit Loss, Current 11,200,000     $ 18,600,000
Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 35,000,000      
Revolving Credit Facility [Member] | Subsequent Event [Member]        
Line of Credit Facility, Maximum Borrowing Capacity     $ 40,000,000  
Revolving Credit Facility [Member] | Prime Rate [Member]        
Debt Instrument Basis Spread Below Variable Rate 0.50%      
Debt Instrument, Interest Received on Daily Negative Balances, Basis Spread Below Variable Rate 2.00%      
Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]        
Debt Instrument, Basis Spread on Variable Rate 1.60%      
Debt Instrument, Interest Rate, Effective Percentage 6.90%      
Letter of Credit [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 1,500,000      
Factoring Agreements [Member]        
Long-Term Debt 0      
Selling, General and Administrative Expense $ 74,000 $ 67,000