Note 4 - Loans and Allowance for Credit Losses (Details Textual) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Provision for Loan, Lease, and Other Losses | $ 600,000 | $ 0 | $ 900,000 | $ 850,000 | |
| Mortgage Loans in Process of Foreclosure, Amount | 143,000 | 143,000 | $ 0 | ||
| Financing Receivable, Nonaccrual, Interest Income | 0 | 378,000 | 2,000 | 378,000 | |
| Financing Receivable, Modified, Commitment to Lend | 0 | 0 | 0 | 0 | |
| Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default | 0 | $ 0 | 0 | $ 0 | |
| Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan | $ 6,631,000 | $ 6,631,000 | $ 1,780,000 | ||
| X | ||||||||||
- Definition Amortized cost excluding accrued interest, of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- 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 commitment to lend additional funds to debtor experiencing financial difficulty for which creditor has modified terms of financing receivable. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- Definition Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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