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Note 4 - Loans and Allowance for Credit Losses - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | $ 61,929 |  | $ 36,584 |  | $ 59,929 |  | $ 35,843 |  | $ 35,843
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 1,116 | [1] | 4,270 | [1] | 3,523 | [2] | 5,069 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (3,918) |  | (2,734) |  | (4,730) |  | (2,939) |  | (4,698)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 151 |  | 212 |  | 556 |  | 359 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 59,278 |  | 38,332 |  | 59,278 |  | 38,332 |  | 59,929
Consumer Borrower [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 9,481 |  | 7,974 |  | 9,799 |  | 7,872 |  | 7,872
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 127 | [1] | (702) | [1] | 340 | [2] | (601) | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (48) |  | (4) |  | (691) |  | (16) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 12 |  | 84 |  | 124 |  | 97 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 9,572 |  | 7,352 |  | 9,572 |  | 7,352 |  | 9,799
Consumer Borrower [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 7,960 |  | 9,508 |  | 8,170 |  | 9,705 |  | 9,705
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 317 | [1] | (663) | [1] | 6 | [2] | (819) | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (79) |  | (2,730) |  | (248) |  | (2,894) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 128 |  | 119 |  | 398 |  | 242 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 8,326 |  | 6,234 |  | 8,326 |  | 6,234 |  | 8,170
Consumer Borrower [Member] | Residential Portfolio Segment [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 9,128 |  | 7,789 |  | 9,359 |  | 7,671 |  | 7,671
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 91 | [1] | (836) | [1] | 464 | [2] | (718) | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (10) |  | (3) |  | (614) |  | (3) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 74 |  | 0 |  | 74 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 9,209 |  | 7,024 |  | 9,209 |  | 7,024 |  | 9,359
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, First Lien [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 7,042 |  | 6,152 |  | 6,921 |  | 6,087 |  | 6,087
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 17 | [1] | (786) | [1] | 192 | [2] | (721) | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | 0 |  | 0 |  | (54) |  | 0 |  | 0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 0 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 7,059 |  | 5,366 |  | 7,059 |  | 5,366 |  | 6,921
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 467 |  | 489 |  | 357 |  | 485 |  | 485
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | (51) | [1] | (31) | [1] | 59 | [2] | (27) | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | 0 |  | 0 |  | 0 |  | 0 |  | 0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 0 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 416 |  | 458 |  | 416 |  | 458 |  | 357
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 1,180 |  | 864 |  | 1,339 |  | 835 |  | 835
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 188 | [1] | 22 | [1] | 279 | [2] | 51 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (10) |  | 0 |  | (260) |  | 0 |  | (19)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 0 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 1,358 |  | 886 |  | 1,358 |  | 886 |  | 1,339
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, Junior Lien [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 439 |  | 284 |  | 742 |  | 264 |  | 264
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | (63) | [1] | (41) | [1] | (66) | [2] | (21) | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | 0 |  | (3) |  | (300) |  | (3) |  | (638)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 74 |  | 0 |  | 74 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 376 |  | 314 |  | 376 |  | 314 |  | 742
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Consumer, Other [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 353 |  | 185 |  | 440 |  | 201 |  | 201
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 36 | [1] | 134 | [1] | (124) | [2] | 117 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (38) |  | (1) |  | (77) |  | (13) |  | (51)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 12 |  | 10 |  | 124 |  | 23 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 363 |  | 328 |  | 363 |  | 328 |  | 440
Commercial Borrower [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 52,448 |  | 28,610 |  | 50,130 |  | 27,971 |  | 27,971
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 989 | [1] | 4,972 | [1] | 3,183 | [2] | 5,670 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (3,870) |  | (2,730) |  | (4,039) |  | (2,923) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 139 |  | 128 |  | 432 |  | 262 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 49,706 |  | 30,980 |  | 49,706 |  | 30,980 |  | 50,130
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs |  |  |  |  | (248) |  |  |  | (3,727)
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 42,972 |  | 18,635 |  | 40,732 |  | 18,086 |  | 18,086
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 566 | [1] | 5,658 | [1] | 2,795 | [2] | 6,225 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (3,407) |  | 0 |  | (3,407) |  | (29) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 11 |  | 9 |  | 22 |  | 20 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 40,142 |  | 24,302 |  | 40,142 |  | 24,302 |  | 40,732
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction, Land, and Development [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 18,369 |  | 5,922 |  | 16,277 |  | 6,135 |  | 6,135
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 160 | [1] | 4,898 | [1] | 2,252 | [2] | 4,685 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | 0 |  | 0 |  | 0 |  | 0 |  | 0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 0 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 18,529 |  | 10,820 |  | 18,529 |  | 10,820 |  | 16,277
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 4,749 |  | 2,148 |  | 4,716 |  | 1,776 |  | 1,776
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 127 | [1] | 282 | [1] | 160 | [2] | 654 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | 0 |  | 0 |  | 0 |  | 0 |  | 0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 0 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 4,876 |  | 2,430 |  | 4,876 |  | 2,430 |  | 4,716
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-Owner Occupied [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 16,342 |  | 8,104 |  | 16,513 |  | 7,726 |  | 7,726
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | (22) | [1] | 668 | [1] | (193) | [2] | 1,046 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (3,401) |  | 0 |  | (3,401) |  | 0 |  | 0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 0 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 12,919 |  | 8,772 |  | 12,919 |  | 8,772 |  | 16,513
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 3,512 |  | 2,461 |  | 3,226 |  | 2,449 |  | 2,449
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 301 | [1] | (190) | [1] | 576 | [2] | (160) | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (6) |  | 0 |  | (6) |  | (29) |  | (237)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 11 |  | 9 |  | 22 |  | 20 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 3,818 |  | 2,280 |  | 3,818 |  | 2,280 |  | 3,226
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 1,516 |  | 467 |  | 1,228 |  | 180 |  | 180
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 106 | [1] | (23) | [1] | 382 | [2] | 264 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (384) |  | 0 |  | (384) |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 12 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 1,238 |  | 444 |  | 1,238 |  | 444 |  | 1,228
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Land [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 603 |  | 248 |  | 597 |  | 96 |  | 96
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 12 | [1] | 11 | [1] | 18 | [2] | 163 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | 0 |  | 0 |  | 0 |  | 0 |  | 0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 0 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | 615 |  | 259 |  | 615 |  | 259 |  | 597
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Production Loans [Member] |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 913 |  | 219 |  | 631 |  | 84 |  | 84
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Provisions | 94 | [1] | (34) | [1] | 364 | [2] | 101 | [1] |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Charge-offs | (384) |  | 0 |  | (384) |  | 0 |  | (26)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Recovery | 0 |  | 0 |  | 12 |  | 0 |  |
Financing Receivable, Allowance for Credit Loss, Ending Balance | $ 623 |  | $ 185 |  | $ 623 |  | $ 185 |  | $ 631
[1] | The difference in the credit loss expense reported herein compared to the consolidated statements of income is associated with the credit loss expense of ($1.5) million related to off-balance sheet credit exposure and ($2) thousand related to HTM investment securities.
[2] | The difference in the credit loss expense reported herein compared to the consolidated statements of income is associated with the credit loss expense of ($793) million related to off-balance sheet credit exposure and ($6) thousand related to HTM investment securities.

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