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Note 12 - Credit Agreement (Details Textual)
$ in Thousands
12 Months Ended
Jan. 26, 2022
USD ($)
Dec. 21, 2018
Dec. 12, 2018
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Revolving Credit Facility [Member]            
Line of Credit Facility, Additional Maximum Borrowing Capacity           $ 60,000
Revolving Credit Facility [Member] | The Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity $ 125,000          
Debt Issuance Costs, Net           $ 500
Line of Credit Facility, Remaining Borrowing Capacity       $ 121,000 $ 121,000  
Long-Term Line of Credit       0 0  
Interest Expense, Debt       0 0  
Debt Instrument, Covenant, Fixed Charge Coverage Ratio   1        
Debt Covenant, Fixed Charge Coverage Ratio, Maximum Unused Availability     $ 14,000 14,000    
Revolving Credit Facility [Member] | The Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.10%          
Revolving Credit Facility [Member] | The Facility [Member] | Additional Margin on Variable Rate Option (Adjusted Term Sofr Rate) [Member] | Minimum [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.25%          
Revolving Credit Facility [Member] | The Facility [Member] | Additional Margin on Variable Rate Option (Adjusted Term Sofr Rate) [Member] | Maximum [Member]            
Debt Instrument, Basis Spread on Variable Rate 2.00%          
Revolving Credit Facility [Member] | The Facility [Member] | Fed Funds Effective Rate Overnight Index Swap Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.50%          
Revolving Credit Facility [Member] | The Facility [Member] | OneMonthAdjusted Term SOFR Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.00%          
Revolving Credit Facility [Member] | The Facility [Member] | OneMonthAdditionalMarginOnVariableRateOptionMember | Minimum [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.25%          
Revolving Credit Facility [Member] | The Facility [Member] | OneMonthAdditionalMarginOnVariableRateOptionMember | Maximum [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.00%          
Standby Letters of Credit [Member] | The Facility [Member]            
Letters of Credit Outstanding, Amount       $ 4,000 $ 4,000