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Note 4 - Loans - Loan Classification (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | $ 1,719,060 |  | $ 1,723,471 |  |  | $ 1,401,278
Less allowance for credit losses | 11,867 | $ 11,270 | 10,525 | $ 7,932 | $ 7,956 | 5,646
Loans, net | 1,707,193 |  | 1,712,946 |  |  |
Commercial and Industrial Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 119,215 |  | 120,541 |  |  |
Less allowance for credit losses | 1,332 | 1,568 | 1,039 | 1,067 | 1,065 | 1,300
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,103,506 |  | 1,105,644 |  |  |
Less allowance for credit losses | 6,486 | 6,228 | 5,414 | 4,953 | 5,023 | 3,609
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 216,262 |  | 206,705 |  |  |
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 509,978 |  | 501,108 |  |  |
Commercial Real Estate Portfolio Segment [Member] | Farmland [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 38,005 |  | 37,367 |  |  |
Commercial Real Estate Portfolio Segment [Member] | Multifamily [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 239,645 |  | 240,033 |  |  |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans Secured by 1-4 Family Dwellings [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 15,341 |  | 9,058 |  |  |
Commercial Real Estate Portfolio Segment [Member] | Construction Loans Secured By Other Real Estate [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 84,275 |  | 111,373 |  |  |
Residential Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 460,559 |  | 460,604 |  |  |
Less allowance for credit losses | 3,794 | 3,222 | 3,816 | 1,447 | 1,326 | 624
Residential Portfolio Segment [Member] | Secured By Senior Liens On 1-4 Family Dwellings [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 395,906 |  | 402,026 |  |  |
Residential Portfolio Segment [Member] | Secured By Junior Liens on 1-4 Family Dwellings [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 21,683 |  | 19,999 |  |  |
Residential Portfolio Segment [Member] | Home Equity Line-of-credit loans [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 42,970 |  | 38,579 |  |  |
Consumer Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 22,113 |  | 25,600 |  |  |
Less allowance for credit losses | 231 | 212 | 238 | 460 | 535 | 86
Agricultural Portfolio [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 13,171 |  | 11,000 |  |  |
Less allowance for credit losses | 22 | 38 | 18 | 5 | 5 | 22
Other Loans [Member] |  |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 496 |  | 82 |  |  |
Less allowance for credit losses | $ 2 | $ 2 | $ 0 | $ 0 | $ 2 | $ 5

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