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Note 6 - Loans and Allowance for Credit Losses - Schedule of Financing Receivable Credit Quality Indicators (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Current Fiscal Year $ 713,598 $ 596,067  
Fiscal Year before Current Fiscal Year 712,874 667,909  
Two Years before Current Fiscal Year 853,524 452,797  
Three Years before Current Fiscal Year 503,370 341,964  
Four Years before Current Fiscal Year 360,131 191,674  
More than Four Years before Current Fiscal Year 527,593 273,541  
Revolving 321,444 235,631  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 3,992,534 2,759,583  
Current Fiscal Year, Gross Charge-offs 0 43  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 238 2  
Two Years before Current Fiscal Year, Gross Charge-offs 102 58  
Three Years before Current Fiscal Year, Gross Charge-offs 547 42  
Four Years before Current Fiscal Year, Gross Charge-offs 2,772 253  
More than Four Years before Current Fiscal Year, Gross Charge-offs 1,174 215  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs 4,833 613 $ 1,549
Commercial Borrower [Member]      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,787,277 1,849,267  
Loans, Gross Charge-offs 3,990 436 (0)
Commercial Borrower [Member] | Commercial Portfolio Segment [Member]      
Current Fiscal Year 210,368 190,107  
Fiscal Year before Current Fiscal Year 154,186 88,077  
Two Years before Current Fiscal Year 64,760 67,073  
Three Years before Current Fiscal Year 37,664 68,695  
Four Years before Current Fiscal Year 47,071 31,953  
More than Four Years before Current Fiscal Year 38,635 17,392  
Revolving 114,043 98,883  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 666,727 562,180  
Current Fiscal Year, Gross Charge-offs 0 39  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 218 0  
Two Years before Current Fiscal Year, Gross Charge-offs 2 49  
Three Years before Current Fiscal Year, Gross Charge-offs 397 11  
Four Years before Current Fiscal Year, Gross Charge-offs 2,768 247  
More than Four Years before Current Fiscal Year, Gross Charge-offs 342 90  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs 3,727 436  
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Pass [Member]      
Current Fiscal Year 209,001 189,643  
Fiscal Year before Current Fiscal Year 141,028 83,233  
Two Years before Current Fiscal Year 61,254 66,837  
Three Years before Current Fiscal Year 34,645 62,367  
Four Years before Current Fiscal Year 38,342 31,859  
More than Four Years before Current Fiscal Year 36,136 14,879  
Revolving 111,194 83,522  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 631,600 532,340  
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Special Mention [Member]      
Current Fiscal Year 1,367 0  
Fiscal Year before Current Fiscal Year 495 0  
Two Years before Current Fiscal Year 3,286 0  
Three Years before Current Fiscal Year 2,239 0  
Four Years before Current Fiscal Year 5,575 0  
More than Four Years before Current Fiscal Year 1 0  
Revolving 1,651 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 14,614 0  
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Substandard [Member]      
Current Fiscal Year 0 464  
Fiscal Year before Current Fiscal Year 12,663 4,844  
Two Years before Current Fiscal Year 220 236  
Three Years before Current Fiscal Year 780 6,328  
Four Years before Current Fiscal Year 3,154 94  
More than Four Years before Current Fiscal Year 2,447 2,513  
Revolving 1,198 15,361  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 20,462 29,840  
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Doubtful [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 51 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 51 0  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member]      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,996,243 1,210,114  
Loans, Gross Charge-offs 237 (0) (0)
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction, Land, and Development [Member]      
Current Fiscal Year 102,650 29,902  
Fiscal Year before Current Fiscal Year 112,845 78,611  
Two Years before Current Fiscal Year 72,647 14,326  
Three Years before Current Fiscal Year 1,560 122  
Four Years before Current Fiscal Year 517 0  
More than Four Years before Current Fiscal Year 1,357 952  
Revolving 3,101 121  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 294,677 124,034  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs (0) (0)  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]      
Current Fiscal Year 35,112 71,994  
Fiscal Year before Current Fiscal Year 62,982 67,368  
Two Years before Current Fiscal Year 146,342 16,637  
Three Years before Current Fiscal Year 34,054 48,643  
Four Years before Current Fiscal Year 52,130 24,581  
More than Four Years before Current Fiscal Year 32,503 15,745  
Revolving 0 135  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 363,123 245,103  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs (0) (0)  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-Owner Occupied [Member]      
Current Fiscal Year 189,068 154,813  
Fiscal Year before Current Fiscal Year 149,368 127,550  
Two Years before Current Fiscal Year 225,043 79,046  
Three Years before Current Fiscal Year 114,679 62,857  
Four Years before Current Fiscal Year 77,779 70,144  
More than Four Years before Current Fiscal Year 205,184 69,823  
Revolving 5,904 5,121  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 967,025 569,354  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs (0) (0)  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member]      
Current Fiscal Year 64,172 39,030  
Fiscal Year before Current Fiscal Year 42,229 55,924  
Two Years before Current Fiscal Year 63,811 44,495  
Three Years before Current Fiscal Year 48,588 36,339  
Four Years before Current Fiscal Year 41,922 25,155  
More than Four Years before Current Fiscal Year 108,077 68,142  
Revolving 2,619 2,538  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 371,418 271,623  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 12 0  
Two Years before Current Fiscal Year, Gross Charge-offs 97 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 128 0  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs 237 (0)  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Construction, Land, and Development [Member]      
Current Fiscal Year 97,244 29,902  
Fiscal Year before Current Fiscal Year 112,845 57,944  
Two Years before Current Fiscal Year 40,890 14,326  
Three Years before Current Fiscal Year 1,560 122  
Four Years before Current Fiscal Year 517 0  
More than Four Years before Current Fiscal Year 1,187 952  
Revolving 2,801 121  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 257,044 103,367  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Multifamily Loan [Member]      
Current Fiscal Year 35,112 71,994  
Fiscal Year before Current Fiscal Year 62,982 67,368  
Two Years before Current Fiscal Year 138,698 16,637  
Three Years before Current Fiscal Year 33,782 48,643  
Four Years before Current Fiscal Year 33,157 24,581  
More than Four Years before Current Fiscal Year 32,204 15,435  
Revolving 0 135  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 335,935 244,793  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Non-Owner Occupied [Member]      
Current Fiscal Year 189,068 154,813  
Fiscal Year before Current Fiscal Year 149,368 127,550  
Two Years before Current Fiscal Year 223,349 79,046  
Three Years before Current Fiscal Year 98,309 62,857  
Four Years before Current Fiscal Year 71,432 69,269  
More than Four Years before Current Fiscal Year 188,617 69,680  
Revolving 1,709 5,121  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 921,852 568,336  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Owner Occupied Loans [Member]      
Current Fiscal Year 63,721 39,030  
Fiscal Year before Current Fiscal Year 41,918 55,337  
Two Years before Current Fiscal Year 60,788 41,623  
Three Years before Current Fiscal Year 44,957 36,339  
Four Years before Current Fiscal Year 38,941 22,340  
More than Four Years before Current Fiscal Year 91,804 66,574  
Revolving 1,652 2,538  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 343,781 263,781  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Construction, Land, and Development [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 172 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 172 0  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Multifamily Loan [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 7,644 0  
Three Years before Current Fiscal Year 272 0  
Four Years before Current Fiscal Year 1,241 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 9,157 0  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Non-Owner Occupied [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 1,694 0  
Three Years before Current Fiscal Year 8,603 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 4,148 0  
Revolving 4,195 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 18,640 0  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Owner Occupied Loans [Member]      
Current Fiscal Year 451 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 937 0  
Four Years before Current Fiscal Year 2,981 0  
More than Four Years before Current Fiscal Year 2,735 262  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 7,104 262  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Construction, Land, and Development [Member]      
Current Fiscal Year 5,406 0  
Fiscal Year before Current Fiscal Year 0 20,667  
Two Years before Current Fiscal Year 31,585 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 170 0  
Revolving 300 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 37,461 20,667  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Multifamily Loan [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 17,732 0  
More than Four Years before Current Fiscal Year 299 310  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 18,031 310  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Non-Owner Occupied [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 7,767 0  
Four Years before Current Fiscal Year 6,347 875  
More than Four Years before Current Fiscal Year 12,419 143  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 26,533 1,018  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Owner Occupied Loans [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 311 587  
Two Years before Current Fiscal Year 3,023 2,872  
Three Years before Current Fiscal Year 2,694 0  
Four Years before Current Fiscal Year 0 2,815  
More than Four Years before Current Fiscal Year 13,538 1,306  
Revolving 967 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 20,533 7,580  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member] | Construction, Land, and Development [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member] | Multifamily Loan [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member] | Non-Owner Occupied [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0  
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member] | Owner Occupied Loans [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
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 124,307 76,973  
Loans, Gross Charge-offs 26 (0)  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Land [Member]      
Current Fiscal Year 10,565 6,424  
Fiscal Year before Current Fiscal Year 10,779 15,294  
Two Years before Current Fiscal Year 19,810 4,721  
Three Years before Current Fiscal Year 5,840 5,958  
Four Years before Current Fiscal Year 5,712 672  
More than Four Years before Current Fiscal Year 8,473 7,763  
Revolving 120 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 61,299 40,832  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs (0) (0)  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Production Loans [Member]      
Current Fiscal Year 10,575 7,890  
Fiscal Year before Current Fiscal Year 7,144 5,858  
Two Years before Current Fiscal Year 6,343 854  
Three Years before Current Fiscal Year 724 1,904  
Four Years before Current Fiscal Year 1,541 2,744  
More than Four Years before Current Fiscal Year 636 174  
Revolving 36,045 16,717  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 63,008 36,141  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 26 0  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs 26 (0)  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Pass [Member] | Land [Member]      
Current Fiscal Year 10,496 6,424  
Fiscal Year before Current Fiscal Year 8,864 15,294  
Two Years before Current Fiscal Year 14,369 4,721  
Three Years before Current Fiscal Year 5,840 5,958  
Four Years before Current Fiscal Year 5,103 672  
More than Four Years before Current Fiscal Year 8,473 7,763  
Revolving 120 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 53,265 40,832  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Pass [Member] | Production Loans [Member]      
Current Fiscal Year 10,445 7,890  
Fiscal Year before Current Fiscal Year 6,440 5,858  
Two Years before Current Fiscal Year 4,356 854  
Three Years before Current Fiscal Year 724 1,904  
Four Years before Current Fiscal Year 1,121 2,744  
More than Four Years before Current Fiscal Year 582 174  
Revolving 34,527 16,717  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 58,195 36,141  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Special Mention [Member] | Land [Member]      
Current Fiscal Year 69 0  
Fiscal Year before Current Fiscal Year 1,612 0  
Two Years before Current Fiscal Year 3,275 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 4,956 0  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Special Mention [Member] | Production Loans [Member]      
Current Fiscal Year 130 0  
Fiscal Year before Current Fiscal Year 704 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 420 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 1,518 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,772 0  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Substandard [Member] | Land [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 303 0  
Two Years before Current Fiscal Year 2,166 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 609 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 3,078 0  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Substandard [Member] | Production Loans [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 1,987 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 54 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,041 0  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Doubtful [Member] | Land [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0  
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Doubtful [Member] | Production Loans [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
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   910,316  
Loans, Gross Charge-offs 843 177 153
Consumer Borrower [Member] | Consumer, Other [Member]      
Loans, Gross Charge-offs     153
Consumer Borrower [Member] | Commercial Portfolio Segment [Member]      
Loans, Gross Charge-offs 3,727 436  
Consumer Borrower [Member] | Residential Portfolio Segment [Member]      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,161,135 881,013  
Loans, Gross Charge-offs 657 126  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, First Lien [Member]      
Current Fiscal Year 49,414 61,201  
Fiscal Year before Current Fiscal Year 145,036 190,749  
Two Years before Current Fiscal Year 226,993 217,146  
Three Years before Current Fiscal Year 251,750 108,100  
Four Years before Current Fiscal Year 127,212 33,102  
More than Four Years before Current Fiscal Year 120,614 87,318  
Revolving 0 284  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 921,019 697,900  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 9  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs (0) 9 (0)
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, First Lien [Member] | Performing Financial Instruments [Member]      
Current Fiscal Year 49,414 61,201  
Fiscal Year before Current Fiscal Year 144,460 190,749  
Two Years before Current Fiscal Year 226,993 217,146  
Three Years before Current Fiscal Year 251,006 108,100  
Four Years before Current Fiscal Year 127,200 33,102  
More than Four Years before Current Fiscal Year 118,958 87,213  
Revolving 0 284  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 918,031 697,795  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, First Lien [Member] | Nonperforming Financial Instruments [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 576 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 744 0  
Four Years before Current Fiscal Year 12 0  
More than Four Years before Current Fiscal Year 1,656 105  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,988 105  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]      
Current Fiscal Year 19,229 10,978  
Fiscal Year before Current Fiscal Year 6,449 16,428  
Two Years before Current Fiscal Year 6,580 1,573  
Three Years before Current Fiscal Year 1,289 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 33,547 28,979  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs (0) (0)  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member] | Performing Financial Instruments [Member]      
Current Fiscal Year 19,229 10,978  
Fiscal Year before Current Fiscal Year 6,449 16,428  
Two Years before Current Fiscal Year 1,900 1,573  
Three Years before Current Fiscal Year 1,289 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 28,867 28,979  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member] | Nonperforming Financial Instruments [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 4,680 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 0 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 4,680 0  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member]      
Current Fiscal Year 3,290 7,470  
Fiscal Year before Current Fiscal Year 5,593 6,835  
Two Years before Current Fiscal Year 6,217 789  
Three Years before Current Fiscal Year 1,622 1,184  
Four Years before Current Fiscal Year 939 308  
More than Four Years before Current Fiscal Year 2,791 1,341  
Revolving 142,057 100,388  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 162,509 118,315  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 19 40  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs 19 40  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Performing Financial Instruments [Member]      
Current Fiscal Year 3,290 7,470  
Fiscal Year before Current Fiscal Year 5,558 6,835  
Two Years before Current Fiscal Year 6,217 789  
Three Years before Current Fiscal Year 1,622 1,184  
Four Years before Current Fiscal Year 939 308  
More than Four Years before Current Fiscal Year 2,717 1,341  
Revolving 140,707 100,388  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 161,050 118,315  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Nonperforming Financial Instruments [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 35 0  
Two Years before Current Fiscal Year 0 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 74 0  
Revolving 1,350 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,459 0  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, Junior Lien [Member]      
Current Fiscal Year 9,537 10,938  
Fiscal Year before Current Fiscal Year 11,557 8,820  
Two Years before Current Fiscal Year 9,853 5,157  
Three Years before Current Fiscal Year 5,098 3,673  
Four Years before Current Fiscal Year 2,760 1,461  
More than Four Years before Current Fiscal Year 5,205 3,939  
Revolving 50 1,831  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 44,060 35,819  
Current Fiscal Year, Gross Charge-offs 0 0  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 0 0  
Two Years before Current Fiscal Year, Gross Charge-offs 0 0  
Three Years before Current Fiscal Year, Gross Charge-offs 0 0  
Four Years before Current Fiscal Year, Gross Charge-offs 0 0  
More than Four Years before Current Fiscal Year, Gross Charge-offs 638 77  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs 638 77 $ (0)
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, Junior Lien [Member] | Performing Financial Instruments [Member]      
Current Fiscal Year 7,762 10,938  
Fiscal Year before Current Fiscal Year 11,557 8,820  
Two Years before Current Fiscal Year 9,553 5,157  
Three Years before Current Fiscal Year 4,990 3,673  
Four Years before Current Fiscal Year 2,760 1,461  
More than Four Years before Current Fiscal Year 4,178 3,939  
Revolving 50 50  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 40,850 34,038  
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, Junior Lien [Member] | Nonperforming Financial Instruments [Member]      
Current Fiscal Year 1,775 0  
Fiscal Year before Current Fiscal Year 0 0  
Two Years before Current Fiscal Year 300 0  
Three Years before Current Fiscal Year 108 0  
Four Years before Current Fiscal Year 0 0  
More than Four Years before Current Fiscal Year 1,027 0  
Revolving 0 1,781  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 3,210 1,781  
Consumer Borrower [Member] | Consumer Portfolio Segment [Member]      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,205,257 910,316  
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Consumer, Other [Member]      
Current Fiscal Year 9,618 5,320  
Fiscal Year before Current Fiscal Year 4,706 6,395  
Two Years before Current Fiscal Year 5,125 980  
Three Years before Current Fiscal Year 502 4,489  
Four Years before Current Fiscal Year 2,548 1,554  
More than Four Years before Current Fiscal Year 4,118 952  
Revolving 17,505 9,613  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 44,122 29,303  
Current Fiscal Year, Gross Charge-offs 0 4  
Fiscal Year before Current Fiscal Year, Gross Charge-offs 8 2  
Two Years before Current Fiscal Year, Gross Charge-offs 3 0  
Three Years before Current Fiscal Year, Gross Charge-offs 150 31  
Four Years before Current Fiscal Year, Gross Charge-offs 4 6  
More than Four Years before Current Fiscal Year, Gross Charge-offs 21 8  
Revolving, Gross Charge-offs 0 0  
Loans, Gross Charge-offs 186 51  
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Consumer, Other [Member] | Performing Financial Instruments [Member]      
Current Fiscal Year 9,618 5,320  
Fiscal Year before Current Fiscal Year 4,695 6,395  
Two Years before Current Fiscal Year 4,853 980  
Three Years before Current Fiscal Year 502 4,489  
Four Years before Current Fiscal Year 2,541 1,554  
More than Four Years before Current Fiscal Year 4,069 952  
Revolving 17,505 9,613  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 43,783 29,303  
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Consumer, Other [Member] | Nonperforming Financial Instruments [Member]      
Current Fiscal Year 0 0  
Fiscal Year before Current Fiscal Year 11 0  
Two Years before Current Fiscal Year 272 0  
Three Years before Current Fiscal Year 0 0  
Four Years before Current Fiscal Year 7 0  
More than Four Years before Current Fiscal Year 49 0  
Revolving 0 0  
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss $ 339 $ 0