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Note 16 - Fair Value Measurements (Details Textual) - USD ($) | 12 Months Ended
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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)

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