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Note 8 - Debt - Long-term Debt (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Jun. 30, 2020
Funded debt $ 200,000 $ 200,000
Issuance Cost (510) (850)
Total long-term debt 199,490 199,150
Line of Credit [Member]    
Funded debt $ 200,000 $ 200,000