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Note 8 - Commitments and Contingencies (Details Textual) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Proceeds from Sale, Loan, Held-for-Sale | $ 93,068,000 | $ 94,874,000 |
Other Liabilities | 28,522,000 |  | $ 31,036,000
Holdback Reserve For Guaranteed Loans [Member] |  |  |
Other Liabilities | 1,700,000 |  | 2,000,000
Federal Home Loan Bank of Des Moines [Member] |  |  |
Proceeds from Sale, Loan, Held-for-Sale | $ 8,600,000 |  |
Escrow Holdback Relative to Outstanding Credit Enhancement (CE) Obligation, Percentage | 10.00% |  |
Escrow Holdback Relative to Outstanding Credit Enhancement (CE) Obligation | $ 39,000 |  |
Federal Home Loan Bank of Des Moines [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Proceeds from Sale, Loan, Held-for-Sale | 0 |  | 0
Federal Home Loan Bank of Des Moines [Member] | Recourse [Member] |  |  |
First Loss Account (FLA) | 581,000 |  |
Credit Enhancement (CE) Obligation | $ 389,000 |  |
Credit Enhancement (CE) Obligation, Percentage of Outstanding Loans | 4.50% |  |
Unfunded Loan Commitment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss | $ 1,500,000 |  | $ 1,400,000
Financing Receivable, Allowance for Credit Loss, Recovery | $ 66,000 | $ 22,000 |

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