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Note 8 - Debt - Long-term Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Sep. 30, 2022
Funded debt $ 150,000 $ 175,000
Issuance cost (1,450) (1,559)
Total long-term debt 148,550 173,441
Line of Credit [Member]    
Funded debt $ 150,000 $ 175,000