Note 5 - Deposits (Details Textual) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Time Deposits, at or Above FDIC Insurance Limit | $ 170.0 | $ 174.4 |
| Deposits, Public Fund | 120.9 | 100.8 |
| Letters of Credit Outstanding, Amount | 60.0 | |
| Deposits, Funds Held by Federally Recognized Tribes | 35.5 | 20.1 |
| Asset Pledged as Collateral [Member] | Funds Held by Federally Recognized Tribes [Member] | ||
| Debt Securities | 38.9 | 22.8 |
| Federal Home Loan Bank of Des Moines [Member] | ||
| Letters of Credit Outstanding, Amount | $ 60.0 | $ 60.0 |
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- Definition Represents funds held by federally recognized tribes as deposits. No definition available.
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- Definition Amount of public fund deposit liabilities. No definition available.
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- Definition Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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