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Note 7 - Debt - Summary of Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Long-Term Debt $ 9,103 $ 9,429
Less: amounts due within one year (1,657) (1,682)
Total long-term debt 7,446 7,747
Secured Term Note [Member]    
Long-Term Debt 8,624 8,604
Insurance and Other Note Payable [Member]    
Long-Term Debt $ 479 $ 825