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v3.25.1

Note 1 - Summary of Significant Accounting Policies (Details Textual) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Jan. 01, 2023 USD ($)
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Accrued interest receivable | Accrued interest receivable |
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss | $ 2,100,000 | $ 2,400,000 |
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Accrued interest receivable | Accrued interest receivable |
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss | $ 18,000 | $ 18,000 |
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Accrued interest receivable | Accrued interest receivable |
Financing Receivable, Accrued Interest, after Allowance for Credit Loss | $ 2,400,000 | $ 2,300,000 |
Loan Payments Delinquency Period Beyond Which Loan is Considered Past Due (Day) | 90 days |  |
Nonaccrual Loans Performance Period | 6 months |  |
Collateral Dependent Loans, Value of Significant Properties | $ 200,000 |  |
Number of Operating Segments | 1 |  |
Number of Reportable Segments | 1 |  |
Retained Earnings (Accumulated Deficit) | $ 105,290,000 | $ 97,105,000 |
Unfunded Loan Commitment [Member] |  |  |
Off-Balance-Sheet, Credit Loss, Liability |  |  | $ 131,000
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss |  |  | 561,000
Retained Earnings (Accumulated Deficit) |  |  | (529,000)
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Unfunded Loan Commitment [Member] |  |  |
Off-Balance-Sheet, Credit Loss, Liability |  |  | $ 131,000
Bank Overdrafts [Member] |  |  |
Financing Receivable, Threshold Period Past Due, Writeoff (Day) | 45 days |  |
Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Threshold Period Past Due, Writeoff (Day) | 90 days |  |
Maximum [Member] |  |  |
Maturity of Time Deposits (Day) | 90 days |  |
Property, Plant and Equipment, Useful Life | 39 years |  |
Minimum [Member] |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |

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