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Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Loans Receivable at Carrying Amount (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Loans | $ 741,579 | $ 820,300
Commercial Portfolio Segment [Member] |  |
Loans | 113,840 | 127,276
Commercial Real Estate Portfolio Segment [Member] |  |
Loans | 489,384 | 507,900
Construction Portfolio Segment [Member] |  |
Loans | 0 | 5,064
Residential Portfolio Segment [Member] |  |
Loans | 7,517 | 8,274
Consumer Portfolio Segment [Member] |  |
Loans | $ 130,838 | $ 171,786

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
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