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Note 10 - Derivative Financial Instruments - Fair Value of Swaps Recognized in Accrued Liabilities and in Other Comprehensive Income (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2024
Jun. 30, 2024
Interest Rate Swap Effective February 6, 2023 [Member]    
Notional Amount $ 100,000  
Fixed Rate 0.86%  
Maturity Mar. 23, 2025  
Fair Value, Liability $ 1,644 $ 3,045
Interest Rate Swap Effective April 24, 2020 [Member]    
Notional Amount $ 25,000  
Fixed Rate 0.81%  
Maturity Apr. 24, 2025  
Fair Value, Liability   863
Interest Rate Swaps Effective February 23, 2023 [Member]    
Notional Amount $ 25,000  
Fixed Rate 0.86%  
Maturity Mar. 24, 2025  
Fair Value, Liability $ 413 765
Interest Rate Swaps Effective May 25, 2023 [Member]    
Fair Value, Liability $ 2,537 $ 4,673