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Note 3 - Debt (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 21, 2021
Jan. 29, 2022
Jan. 29, 2022
May 01, 2021
Term Loan Facility [Member]        
Debt Instrument, Face Amount $ 50,000      
Long-term Debt, Total   $ 50,000 $ 50,000  
Long-term Debt, Weighted Average Interest Rate, over Time   1.11%    
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Term Loan Facility [Member]        
Debt Instrument, Basis Spread on Variable Rate 0.95%      
Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   $ 100,000 100,000  
Long-term Line of Credit, Total   0 0 $ 0
Letters of Credit Outstanding, Amount   3,000 3,000  
Line of Credit Facility, Remaining Borrowing Capacity   $ 97,000 $ 97,000  
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate     1.00%