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Loans, Allowance for Credit Losses - Loans and Amortized Cost Basis of Loans Under CECL Methodology (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | $ 14,761 | $ 102 |  |
Individually evaluated | 489 | 18,450 |  |
Total Allowance for Credit Losses - Loans | 15,250 | 18,552 | $ 17,556 | $ 17,304
Collectively evaluated | 1,708,356 | 1,709,724 |  |
Individually evaluated | 15,119 | 11,969 |  |
Loans acquired with deteriorated credit quality |  | 3,306 |  |
Total Loans | 1,723,475 | 1,724,999 |  |
Residential [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Total Loans | 166,403 |  |  |
Commercial [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Total Loans | 878,972 |  |  |
Construction [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Total Loans | 75,745 |  |  |
Real Estate Loans [Member] | Residential [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 1,169 | 4 |  |
Individually evaluated | 26 | 1,052 |  |
Total Allowance for Credit Losses - Loans | 1,195 | 1,056 | 1,070 | 1,147
Collectively evaluated | 212,535 | 209,869 |  |
Individually evaluated | 258 | 335 |  |
Loans acquired with deteriorated credit quality |  | 9 |  |
Total Loans | 212,793 | 210,213 |  |
Real Estate Loans [Member] | Commercial [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 6,576 | 57 |  |
Individually evaluated | 171 | 10,063 |  |
Total Allowance for Credit Losses - Loans | 6,747 | 10,120 | 8,394 | 8,099
Collectively evaluated | 872,802 | 869,038 |  |
Individually evaluated | 6,170 | 5,675 |  |
Loans acquired with deteriorated credit quality |  | 1,856 |  |
Total Loans | 878,972 | 876,569 |  |
Real Estate Loans [Member] | Agricultural [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 3,385 | 24 |  |
Individually evaluated | 24 | 4,565 |  |
Total Allowance for Credit Losses - Loans | 3,409 | 4,589 | 4,516 | 4,729
Collectively evaluated | 308,476 | 306,793 |  |
Individually evaluated | 4,317 | 5,380 |  |
Loans acquired with deteriorated credit quality |  | 1,441 |  |
Total Loans | 312,793 | 313,614 |  |
Real Estate Loans [Member] | Construction [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 594 | 0 |  |
Individually evaluated | 257 | 801 |  |
Total Allowance for Credit Losses - Loans | 851 | 801 | 497 | 434
Collectively evaluated | 73,388 | 80,691 |  |
Individually evaluated | 2,357 | 0 |  |
Loans acquired with deteriorated credit quality |  | 0 |  |
Total Loans | 75,745 | 80,691 |  |
Consumer [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 1,216 | 4 |  |
Individually evaluated | 4 | 131 |  |
Total Allowance for Credit Losses - Loans | 1,220 | 135 | 210 | 262
Collectively evaluated | 87,097 | 86,646 |  |
Individually evaluated | 4 | 4 |  |
Loans acquired with deteriorated credit quality |  | 0 |  |
Total Loans | 87,101 | 86,650 |  |
Other Commercial Loans [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 705 | 13 |  |
Individually evaluated | 7 | 1,027 |  |
Total Allowance for Credit Losses - Loans | 712 | 1,040 | 1,380 | 1,023
Collectively evaluated | 62,453 | 63,120 |  |
Individually evaluated | 1,680 | 102 |  |
Loans acquired with deteriorated credit quality |  | 0 |  |
Total Loans | 64,133 | 63,222 |  |
Other Commercial Loans [Member] | Construction [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Total Loans | 64,133 |  |  |
Other Agricultural Loans [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 250 | 0 |  |
Individually evaluated | 0 | 489 |  |
Total Allowance for Credit Losses - Loans | 250 | 489 | 551 | 558
Collectively evaluated | 31,719 | 34,359 |  |
Individually evaluated | 333 | 473 |  |
Loans acquired with deteriorated credit quality |  | 0 |  |
Total Loans | 32,052 | 34,832 |  |
State and Political Subdivision Loans [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 42 | 0 |  |
Individually evaluated | 0 | 322 |  |
Total Allowance for Credit Losses - Loans | 42 | 322 | 285 | 281
Collectively evaluated | 59,886 | 59,208 |  |
Individually evaluated | 0 | 0 |  |
Loans acquired with deteriorated credit quality |  | 0 |  |
Total Loans | 59,886 | 59,208 |  |
Unallocated [Member] |  |  |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Collectively evaluated | 824 |  |  |
Individually evaluated | 0 |  |  |
Total Allowance for Credit Losses - Loans | 824 | $ 0 | $ 653 | $ 771
Collectively evaluated | 0 |  |  |
Individually evaluated | 0 |  |  |
Total Loans | $ 0 |  |  |

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