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Note 6 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Mar. 31, 2025
Collateral Pledged [Member] |  |
Financing Receivable, before Allowance for Credit Loss | $ 9,259 | $ 8,999
Commercial Real Estate Portfolio Segment [Member] | Collateral Pledged [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 9,259 | $ 8,999
Loans Held-for-sale [Member] | Changes Measurement [Member] | Fair Value, Nonrecurring [Member] |  |
Assets, Fair Value Adjustment | $ 0 |

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