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Note 4 - Loans and Allowance for Credit Losses - Schedule of Loans Past Due (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | $ 4,044,657 | $ 3,992,534
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 51,276 | 54,433
Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 3,984,360 | 3,924,341
Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 3,632 | 3,987
Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 5,187 | 1,320
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 202 | 8,453
Commercial Borrower [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,824,087 | 2,787,277
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 40,315 | 41,757
Commercial Borrower [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,776,241 | 2,735,772
Commercial Borrower [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,604 | 1,215
Commercial Borrower [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 4,927 | 133
Commercial Borrower [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 8,400
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 675,892 | 666,727
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 3,035 | 3,218
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 671,559 | 654,073
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 992 | 903
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 306 | 133
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 8,400
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 2,013,869 | 1,996,243
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 36,501 | 37,278
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction, Land, and Development [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 352,749 | 294,677
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 34,827 | 30,044
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 333,307 | 363,123
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 209 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-Owner Occupied [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 887,643 | 967,025
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 0 | 5,217
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 440,170 | 371,418
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 1,465 | 2,017
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,971,476 | 1,958,740
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Construction, Land, and Development [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 317,922 | 264,633
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Multifamily Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 328,568 | 363,123
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Non-Owner Occupied [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 887,643 | 961,808
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 437,343 | 369,176
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,271 | 225
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Construction, Land, and Development [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Multifamily Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-Owner Occupied [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,271 | 225
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 4,621 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Construction, Land, and Development [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Multifamily Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 4,530 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-Owner Occupied [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 91 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction, Land, and Development [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Multifamily Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-Owner Occupied [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 134,326 | 124,307
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 779 | 1,261
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Land [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 66,395 | 61,299
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 779 | 609
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Production Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 67,931 | 63,008
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 0 | 652
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 133,206 | 122,959
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Land [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 65,616 | 60,690
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Production Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 67,590 | 62,269
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 341 | 87
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Land [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Production Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 341 | 87
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Land [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Production Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Land [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Production Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Consumer Borrower [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 1,205,257
Consumer Borrower [Member] | Residential Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,179,566 | 1,161,135
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 10,913 | 12,338
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, First Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 901,738 | 921,019
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 2,651 | 2,988
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 35,754 | 33,547
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 4,680 | 4,680
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 200,624 | 162,509
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 1,214 | 1,460
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, Junior Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 41,450 | 44,060
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 2,368 | 3,210
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,167,303 | 1,144,918
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Real Estate, First Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 898,139 | 915,167
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Construction Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 31,074 | 28,867
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Home Equity Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 199,141 | 160,430
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Real Estate, Junior Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 38,949 | 40,454
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 898 | 2,669
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Real Estate, First Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 532 | 2,104
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Construction Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Home Equity Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 233 | 169
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Real Estate, Junior Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 133 | 396
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 250 | 1,157
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Real Estate, First Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 214 | 707
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Construction Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Home Equity Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 36 | 450
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Real Estate, Junior Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 202 | 53
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Real Estate, First Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 202 | 53
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Loans [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Home Equity Loan [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Real Estate, Junior Lien [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 0 | 0
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,220,570 | 1,205,257
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 10,961 | 12,676
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Consumer, Other [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 41,004 | 44,122
Financing Receivable, Excluding Accrued Interest, Nonaccrual | 48 | 338
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,208,119 | 1,188,569
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Consumer, Other [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 40,816 | 43,651
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 1,028 | 2,772
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Consumer, Other [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 130 | 103
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 260 | 1,187
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Consumer, Other [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 10 | 30
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | 202 | 53
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer, Other [Member] |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | $ 0 | $ 0

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