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Note 8 - Loans - Nonaccrual Loans and Related Allowance for Credit Losses (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Loans with no related allowance, unpaid principal balance | $ 112,088 | $ 88,728
Loans with no related allowance, recorded investment | 87,957 | 66,681
Loans with related allowance, unpaid principal balance | 10,753 |
Loans with related allowance, recorded investment | 10,150 |
Allowance | 5,100 | 0
Unpaid principal balance | 122,841 | 88,728
Recorded investment | 98,107 | 66,681
Commercial Portfolio Segment [Member] |  |
Loans with no related allowance, unpaid principal balance | 16,329 | 26,310
Loans with no related allowance, recorded investment | 4,492 | 14,404
Loans with related allowance, unpaid principal balance | 10,753 |
Loans with related allowance, recorded investment | 10,150 |
Allowance | 5,100 |
Real Estate Construction Portfolio Segment [Member] |  |
Loans with no related allowance, unpaid principal balance | 22,998 | 7,736
Loans with no related allowance, recorded investment | 22,998 | 7,736
Commercial Real Estate Portfolio Segment [Member] |  |
Loans with no related allowance, unpaid principal balance | 59,261 | 41,725
Loans with no related allowance, recorded investment | 47,465 | 32,030
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Loans with no related allowance, unpaid principal balance | 13,500 | 12,957
Loans with no related allowance, recorded investment | $ 13,002 | $ 12,511

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- Definition Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
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