v3.26.1
Note 4 - Loans and Allowance for Credit Losses - Schedule of Loans Past Due (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss $ 4,034,244 $ 4,048,022
Financing Receivable, Excluding Accrued Interest, Nonaccrual 7,105 69,065
Financial Asset, Not Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 4,019,932 3,973,784
Financial Asset, 30 to 59 Days Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 6,300 4,061
Financial Asset, 60 to 89 Days Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 471 1,112
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 436 0
Commercial Real Estate Portfolio Segment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,335,092 1,505,605
Commercial Borrower [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,824,861 2,796,997
Financing Receivable, Excluding Accrued Interest, Nonaccrual 4,270 58,934
Commercial Borrower [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,814,968 2,736,170
Commercial Borrower [Member] | Financial Asset, 30 to 59 Days Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 5,377 1,579
Commercial Borrower [Member] | Financial Asset, 60 to 89 Days Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 246 314
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 0
Commercial Borrower [Member] | Commercial Portfolio Segment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,382,200 1,164,093
Financing Receivable, Excluding Accrued Interest, Nonaccrual 3,098 12,851
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Portfolio Segments [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 759,959 736,833
Financing Receivable, Excluding Accrued Interest, Nonaccrual 2,962 12,708
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Owner Occupied Loans [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 622,241 427,260
Financing Receivable, Excluding Accrued Interest, Nonaccrual 136 143
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,377,546 1,150,239
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Commercial and Industrial Portfolio Segments [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 755,441 723,436
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Owner Occupied Loans [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 622,105 426,803
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 1,505 689
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial Portfolio Segments [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,505 689
Commercial Borrower [Member] | Commercial 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 0 0
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 51 314
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial Portfolio Segments [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 51 0
Commercial Borrower [Member] | Commercial 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 0 314
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 0
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial Portfolio Segments [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Commercial Borrower [Member] | Commercial 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] | Commercial Real Estate Portfolio Segment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,335,092 1,505,605
Financing Receivable, Excluding Accrued Interest, Nonaccrual 1,023 45,577
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction, Land, and Development [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 79,850 246,238
Financing Receivable, Excluding Accrued Interest, Nonaccrual 0 33,723
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 361,875 383,505
Financing Receivable, Excluding Accrued Interest, Nonaccrual 872 10,197
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-Owner Occupied [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 893,367 875,862
Financing Receivable, Excluding Accrued Interest, Nonaccrual 151 1,657
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 1,330,491 1,459,865
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 79,850 212,515
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 357,425 373,308
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 893,216 874,042
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 3,578 163
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 3,578 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 0 163
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 0 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 0 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, 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] | Agricultural Real Estate Portfolio Segment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 107,569 127,299
Financing Receivable, Excluding Accrued Interest, Nonaccrual 149 506
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Land [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 54,202 64,799
Financing Receivable, Excluding Accrued Interest, Nonaccrual 149 164
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Production Loans [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 53,367 62,500
Financing Receivable, Excluding Accrued Interest, Nonaccrual 0 342
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 106,931 126,066
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 53,824 63,961
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 53,107 62,105
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 294 727
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 229 674
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 65 53
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 195 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 195 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   1,251,025
Consumer Borrower [Member] | Residential Portfolio Segment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,165,203 1,206,167
Financing Receivable, Excluding Accrued Interest, Nonaccrual 2,561 9,785
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, First Lien [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 828,936 874,737
Financing Receivable, Excluding Accrued Interest, Nonaccrual 1,901 2,601
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 31,202 33,703
Financing Receivable, Excluding Accrued Interest, Nonaccrual 0 4,680
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 273,124 260,883
Financing Receivable, Excluding Accrued Interest, Nonaccrual 588 129
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, Junior Lien [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 31,941 36,844
Financing Receivable, Excluding Accrued Interest, Nonaccrual 72 2,375
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,161,175 1,193,143
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 826,107 869,291
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 31,202 29,023
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 272,088 260,467
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 31,778 34,362
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 816 2,445
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 298 2,051
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 440 287
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 78 107
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 215 794
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 194 794
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 8 0
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 13 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 436 0
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 436 0
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 1,209,383 1,251,025
Financing Receivable, Excluding Accrued Interest, Nonaccrual 2,835 10,131
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Consumer, Other [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 44,180 44,858
Financing Receivable, Excluding Accrued Interest, Nonaccrual 274 346
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,204,964 1,237,614
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 43,789 44,471
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 923 2,482
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 107 37
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 225 798
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 4
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 436 0
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