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Note 13 - Financial Instruments With Off-balance Sheet Risk (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Offsetting Assets [Line Items] |  |
Payment for Origination, Loan, Mortgage, Held-for-Sale | $ 13,627,000 | $ 10,516,000
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Cost of Mortgage Sold | $ 14,472,000 | $ 10,471,000
Potential Default Period After Sale of Loans to Investor (Month) | 12 months |
Cash, Uninsured Amount | $ 10,000 |
Interest Rate Lock Commitments [Member] |  |
Offsetting Assets [Line Items] |  |
Other Commitment | $ 0 |

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- Definition Amount of decrease in investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate, from sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478322/948-310-S50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29(Column G)(Footnote 6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1 + Details
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