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Loans (Risk Category of Loans) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Loans | $ 3,977,900 | $ 3,788,645 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Total | 3,791 | 2,850 | $ 3,835
Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 112,673 | 158,088 |
One year before current fiscal year | 135,337 | 123,425 |
Two year before current fiscal year | 86,555 | 41,375 |
Three year before current fiscal year | 30,101 | 47,887 |
Four year before current fiscal year | 34,281 | 20,002 |
Prior | 49,183 | 56,065 |
Revolving Loans Amortized Cost Basis | 141,411 | 173,264 |
Loans | 589,541 | 620,106 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
2023 | 0 |  |
2022 | 911 |  |
2021 | 32 |  |
2020 | 493 |  |
2019 | 7 |  |
Prior | 88 |  |
Revolving Loans Amortized Cost Basis | 261 |  |
Total | 1,792 | 1,149 | 2,777
Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 314,475 | 402,613 |
One year before current fiscal year | 419,892 | 496,943 |
Two year before current fiscal year | 487,582 | 266,563 |
Three year before current fiscal year | 228,461 | 164,251 |
Four year before current fiscal year | 148,419 | 143,819 |
Prior | 481,090 | 457,532 |
Revolving Loans Amortized Cost Basis | 41,916 | 35,163 |
Loans | 2,121,835 | 1,966,884 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 56 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 56 | 79 | 10
Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 46,443 | 63,307 |
One year before current fiscal year | 56,455 | 48,734 |
Two year before current fiscal year | 40,954 | 54,049 |
Three year before current fiscal year | 47,514 | 30,009 |
Four year before current fiscal year | 25,755 | 24,168 |
Prior | 114,968 | 108,974 |
Revolving Loans Amortized Cost Basis | 91,714 | 88,172 |
Loans | 423,803 | 417,413 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 2 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 25 |  |
Total | 27 | 0 | 0
Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 36,848 | 20,057 |
One year before current fiscal year | 12,281 | 14,461 |
Two year before current fiscal year | 10,634 | 9,648 |
Three year before current fiscal year | 6,086 | 8,901 |
Four year before current fiscal year | 4,788 | 1,851 |
Prior | 1,351 | 1,478 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | 71,988 | 56,396 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 0 | 0 | $ 0
Pass | Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 112,626 | 156,318 |
One year before current fiscal year | 134,590 | 117,648 |
Two year before current fiscal year | 80,738 | 39,949 |
Three year before current fiscal year | 28,492 | 46,505 |
Four year before current fiscal year | 32,585 | 18,423 |
Prior | 45,764 | 51,482 |
Revolving Loans Amortized Cost Basis | 134,936 | 154,203 |
Loans | 569,731 | 584,528 |
Pass | Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 300,569 | 398,631 |
One year before current fiscal year | 416,874 | 490,747 |
Two year before current fiscal year | 470,917 | 261,462 |
Three year before current fiscal year | 225,668 | 162,701 |
Four year before current fiscal year | 147,431 | 129,151 |
Prior | 458,821 | 427,433 |
Revolving Loans Amortized Cost Basis | 41,102 | 35,163 |
Loans | 2,061,382 | 1,905,288 |
Pass | Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 44,948 | 62,673 |
One year before current fiscal year | 56,291 | 47,682 |
Two year before current fiscal year | 39,852 | 47,355 |
Three year before current fiscal year | 42,279 | 25,431 |
Four year before current fiscal year | 23,217 | 21,728 |
Prior | 100,391 | 92,344 |
Revolving Loans Amortized Cost Basis | 89,455 | 83,862 |
Loans | 396,433 | 381,075 |
Pass | Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 36,848 | 20,057 |
One year before current fiscal year | 12,281 | 14,461 |
Two year before current fiscal year | 10,634 | 9,648 |
Three year before current fiscal year | 6,086 | 8,901 |
Four year before current fiscal year | 4,788 | 1,851 |
Prior | 1,351 | 1,478 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | 71,988 | 56,396 |
Special Mention | Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 47 | 56 |
One year before current fiscal year | 453 | 148 |
Two year before current fiscal year | 128 | 577 |
Three year before current fiscal year | 829 | 78 |
Four year before current fiscal year | 0 | 551 |
Prior | 1,948 | 2,346 |
Revolving Loans Amortized Cost Basis | 3,048 | 1,672 |
Loans | 6,453 | 5,428 |
Special Mention | Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 13,906 | 3,982 |
One year before current fiscal year | 2,401 | 1,568 |
Two year before current fiscal year | 11,155 | 4,612 |
Three year before current fiscal year | 1,651 | 135 |
Four year before current fiscal year | 259 | 13,689 |
Prior | 19,532 | 25,371 |
Revolving Loans Amortized Cost Basis | 638 | 0 |
Loans | 49,542 | 49,357 |
Special Mention | Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 1,495 | 634 |
One year before current fiscal year | 164 | 842 |
Two year before current fiscal year | 903 | 6,066 |
Three year before current fiscal year | 5,047 | 4,149 |
Four year before current fiscal year | 2,338 | 2,355 |
Prior | 9,894 | 11,440 |
Revolving Loans Amortized Cost Basis | 2,259 | 4,310 |
Loans | 22,100 | 29,796 |
Special Mention | Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 0 |
One year before current fiscal year | 0 | 0 |
Two year before current fiscal year | 0 | 0 |
Three year before current fiscal year | 0 | 0 |
Four year before current fiscal year | 0 | 0 |
Prior | 0 | 0 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | 0 | 0 |
Substandard | Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 1,714 |
One year before current fiscal year | 294 | 5,629 |
Two year before current fiscal year | 5,689 | 849 |
Three year before current fiscal year | 780 | 1,304 |
Four year before current fiscal year | 1,696 | 1,028 |
Prior | 1,471 | 2,237 |
Revolving Loans Amortized Cost Basis | 3,427 | 17,389 |
Loans | 13,357 | 30,150 |
Substandard | Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 0 |
One year before current fiscal year | 617 | 4,628 |
Two year before current fiscal year | 5,510 | 489 |
Three year before current fiscal year | 1,142 | 1,415 |
Four year before current fiscal year | 729 | 979 |
Prior | 2,737 | 4,728 |
Revolving Loans Amortized Cost Basis | 176 | 0 |
Loans | 10,911 | 12,239 |
Substandard | Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 0 |
One year before current fiscal year | 0 | 210 |
Two year before current fiscal year | 199 | 628 |
Three year before current fiscal year | 188 | 429 |
Four year before current fiscal year | 200 | 85 |
Prior | 4,683 | 5,190 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | 5,270 | 6,542 |
Substandard | Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 0 |
One year before current fiscal year | 0 | 0 |
Two year before current fiscal year | 0 | 0 |
Three year before current fiscal year | 0 | 0 |
Four year before current fiscal year | 0 | 0 |
Prior | 0 | 0 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | 0 | 0 |
Doubtful | Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 0 |
One year before current fiscal year | 0 | 0 |
Two year before current fiscal year | 0 | 0 |
Three year before current fiscal year | 0 | 0 |
Four year before current fiscal year | 0 | 0 |
Prior | 0 | 0 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | 0 | 0 |
Doubtful | Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 0 |
One year before current fiscal year | 0 | 0 |
Two year before current fiscal year | 0 | 0 |
Three year before current fiscal year | 0 | 0 |
Four year before current fiscal year | 0 | 0 |
Prior | 0 | 0 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | 0 | 0 |
Doubtful | Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 0 |
One year before current fiscal year | 0 | 0 |
Two year before current fiscal year | 0 | 0 |
Three year before current fiscal year | 0 | 0 |
Four year before current fiscal year | 0 | 0 |
Prior | 0 | 0 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | 0 | 0 |
Doubtful | Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Current fiscal year | 0 | 0 |
One year before current fiscal year | 0 | 0 |
Two year before current fiscal year | 0 | 0 |
Three year before current fiscal year | 0 | 0 |
Four year before current fiscal year | 0 | 0 |
Prior | 0 | 0 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Loans | $ 0 | $ 0 |

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