Note 3 - Loans and Allowance for Credit Losses (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Financing Receivable, Unamortized Loan Cost (Fee) | $ 1,300,000 | $ 1,300,000 |
| Financing Receivable, Deferred Commitment Fee | 1,500,000 | 1,400,000 |
| Financing Receivable, Nonaccrual, Interest Income | 0 | 0 |
| Consumer Portfolio Segment [Member] | ||
| Financing Receivable, Modified, Accumulated | 2,584,000 | |
| Financing Receivable, Troubled Debt Restructuring, Premodification | $ 628,000 | 449,000 |
| Financing Receivable, Write Down on Financing Receivable | $ 0 | |
| Contractual Interest Rate Reduction [Member] | ||
| Financing Receivable, Modified, Percent of Loans Balance | 50.00% | |
| Financing Receivable, Modified, Accumulated | $ 1,600,000 | |
| Extended Maturity [Member] | ||
| Financing Receivable, Modified, Percent of Loans Balance | 36.00% | |
| Financing Receivable, Modified, Accumulated | $ 1,200,000 | |
| Capitalized Interest, Renewals Below Market Rate, and A-B Note Restructures [Member] | ||
| Financing Receivable, Modified, Accumulated | $ 471,000 | |
| X | ||||||||||
- Definition The percent of loans balance of modified financing receivable. No definition available.
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- Definition Amount, before troubled debt restructuring, of financing receivable to be modified. No definition available.
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- Definition Represents write down on financing receivable for financing receivable. No definition available.
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| X | ||||||||||
- Definition Amount of fee received for commitment to originate or purchase financing receivable where likelihood of commitment being exercised is remote, to be recognized as service income. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of interest income on financing receivable on nonaccrual status. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of unamortized loan commitment, origination, and other costs (fees) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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