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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
Mar. 31, 2023
Jun. 30, 2022
Fair Value, Liability $ 9,539 $ 8,420
Interest Rate Swap Effective February 6, 2023 [Member]    
Notional Amount $ 25,000  
Fixed Rate 2.80%  
Maturity Aug. 06, 2023  
Fair Value, Liability $ 185 48
Interest Rate Swaps Effective February 23, 2023 [Member]    
Notional Amount $ 100,000  
Fixed Rate 0.86%  
Maturity Mar. 23, 2025  
Fair Value, Liability $ 6,157 5,538
Interest Rate Swap Effective April 24, 2020 [Member]    
Notional Amount $ 25,000  
Fixed Rate 0.88%  
Maturity Apr. 24, 2025  
Fair Value, Liability $ 1,654 1,447
Interest Rate Swap Effective February 24, 2023 [Member]    
Notional Amount $ 25,000  
Fixed Rate 0.86%  
Maturity Mar. 24, 2025  
Fair Value, Liability $ 1,543 $ 1,387