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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 | 12 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024
Fair Value, Liability |  | $ 4,673
Interest Rate Swaps Effective February 23, 2023 [Member] |  |
Notional Amount | $ 100,000 |
Fixed Rate | 0.86% |
Maturity | Mar. 23, 2025 |
Fair Value, Liability | $ 0 | 3,045
Interest Rate Swaps Effective May 25, 2023 [Member] |  |
Notional Amount | $ 25,000 |
Fixed Rate | 0.81% |
Maturity | Apr. 24, 2025 |
Fair Value, Liability | $ 0 | 863
Interest Rate Swap Effective February 24, 2023 [Member] |  |
Notional Amount | $ 25,000 |
Fixed Rate | 0.86% |
Maturity | Mar. 24, 2025 |
Fair Value, Liability | $ 0 | $ 765

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