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Note 8 - Debt (Details Textual) - USD ($)
$ in Millions
Sep. 30, 2025
Jun. 30, 2025
Standby Letters of Credit [Member]    
Long-Term Line of Credit $ 1.9 $ 1.9
Amended and Restated Credit Agreement [Member]    
Line of Credit Facility, Remaining Borrowing Capacity $ 197.6 $ 207.7