Note 8 - Deposits (Details Textual) - USD ($) $ in Millions |
Dec. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Time Deposits, at or Above FDIC Insurance Limit | $ 93.6 | $ 36.9 |
| Deposit Liability, Uninsured | $ 516.1 | $ 452.0 |
| X | ||||||||||
- Definition Amount of uninsured deposit liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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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