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Note 10 - Equity Compensation - Schedule of Option Valuation Assumptions (Details) - Share-Based Payment Arrangement, Option [Member] - $ / shares
12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Dividend yield 1.40% 0.00%
Expected volatility 35.00% 0.00%
Risk-free interest rate 0.30% 0.00%
Expected life (in years) (Year) 5 years  
Fair value per share (in dollars per share) $ 5.25 $ 0