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Note 8 - Bonds Payable, Loans Payable, and Interest - Bonds Payable (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
May 20, 2021
Total Bonds payable, net $ 162,670 $ 162,621  
Series 2021 Bonds [Member]      
Series 2021 Bonds Principal 166,340 166,340 $ 166,300
Premium on bonds 249 249 $ 200
Bond proceeds 166,589 166,589  
Debt issuance costs (4,753) (4,753)  
Accumulated amortization of debt issuance costs and accretion of bond premium 834 785  
Total Bonds payable, net $ 162,670 $ 162,621