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Note 8 - Bonds Payable, Loans Payable and Interest - Loans Payable and Finance Lease Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Weighted average interest rate 7.84% 8.47%
Balance $ 7,104 $ 7,535
Vista Loan [Member]    
Weighted average interest rate 7.85% 8.43%
Balance $ 6,838 $ 7,224
Equipment Loan [Member]    
Weighted average interest rate 7.98% 8.01%
Balance $ 230 $ 270
Finance Lease [Member]    
Weighted average interest rate 4.98% 5.00%
Balance $ 36 $ 41