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Note 16 - Fair Value Measurements (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Loans Receivable, Fair Value Disclosure $ 12,728,000 $ 15,088,000  
Residential Mortgage [Member] | Fair Value, Inputs, Level 2 [Member]      
Loans Receivable, Fair Value Disclosure 12,700,000 15,100,000  
Financing Receivable, before Allowance for Credit Loss 13,800,000 16,300,000  
Increase (Decrease) in Finance Receivables $ 52,000 $ 447,000 $ (1,700,000)