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Allowance for Credit Losses - Schedule of Impact Of CECL Adoption (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | $ 35,149 |  | $ 28,511 |
Charge-offs | (666) |  | (855) |
Recoveries | 167 |  | 320 |
Provision | 630 |  | 2,111 |
Ending Balance | 35,280 |  | 35,280 |
Beginning balance |  | $ 27,435 | 28,511 | $ 26,641
Charge-offs |  | (74) |  | (164)
Recoveries |  | 112 |  | 296
Provision | 630 | 300 | 2,111 | 1,000
Ending Balance |  | 27,773 |  | 27,773
ASU 2016-13 [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 897 |
ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 4,296 |
Commercial and Agriculture [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 5,540 |  | 3,011 |
Charge-offs | (614) |  | (754) |
Recoveries | 84 |  | 131 |
Provision | 146 |  | 2,339 |
Ending Balance | 5,156 |  | 5,156 |
Beginning balance |  | 2,790 | 3,011 | 2,600
Charge-offs |  | (22) |  | (22)
Recoveries |  | 12 |  | 16
Provision |  | (51) |  | 135
Ending Balance |  | 2,729 |  | 2,729
Commercial and Agriculture [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 429 |
Commercial Real Estate Owner Occupied [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 5,531 |  | 4,565 |
Provision | (50) |  | (178) |
Ending Balance | 5,481 |  | 5,481 |
Beginning balance |  | 4,729 | 4,565 | 4,464
Recoveries |  | 15 |  | 42
Provision |  | 182 |  | 420
Ending Balance |  | 4,926 |  | 4,926
Commercial Real Estate Owner Occupied [Member] | ASU 2016-13 [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 19 |
Commercial Real Estate Owner Occupied [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 1,075 |
Commercial Real Estate Non Owner Occupied [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 11,646 |  | 14,138 |
Recoveries | 9 |  | 25 |
Provision | (100) |  | 239 |
Ending Balance | 11,555 |  | 11,555 |
Beginning balance |  | 14,711 | 14,138 | 13,860
Recoveries |  | 16 |  | 68
Provision |  | (300) |  | 499
Ending Balance |  | 14,427 |  | 14,427
Commercial Real Estate Non Owner Occupied [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | (2,847) |
Residential Real Estate [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 6,515 |  | 3,145 |
Charge-offs | (1) |  | (12) |
Recoveries | 64 |  | 118 |
Provision | 253 |  | 652 |
Ending Balance | 6,831 |  | 6,831 |
Beginning balance |  | 2,859 | 3,145 | 2,597
Charge-offs |  | (39) |  | (97)
Recoveries |  | 64 |  | 140
Provision |  | 152 |  | 396
Ending Balance |  | 3,036 |  | 3,036
Residential Real Estate [Member] | ASU 2016-13 [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 166 |
Residential Real Estate [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 2,762 |
Real Estate Construction [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 3,447 |  | 2,293 |
Recoveries | 4 |  | 13 |
Provision | 288 |  | (69) |
Ending Balance | 3,739 |  | 3,739 |
Beginning balance |  | 1,969 | 2,293 | 1,810
Provision |  | 44 |  | 203
Ending Balance |  | 2,013 |  | 2,013
Real Estate Construction [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 1,502 |
Farm Real Estate [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 243 |  | 291 |
Provision | (16) |  | (36) |
Ending Balance | 227 |  | 227 |
Beginning balance |  | 236 | 291 | 287
Recoveries |  | 1 |  | 5
Provision |  | 14 |  | (41)
Ending Balance |  | 251 |  | 251
Farm Real Estate [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | (28) |
Lease Financing Receivables [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 1,947 |  | 429 |
Provision | (115) |  | (975) |
Ending Balance | 1,832 |  | 1,832 |
Beginning balance |  |  | 429 |
Lease Financing Receivables [Member] | ASU 2016-13 [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 635 |
Lease Financing Receivables [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 1,743 |
Consumer and Other [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 272 |  | 98 |
Charge-offs | (51) |  | (89) |
Recoveries | 6 |  | 33 |
Provision | 21 |  | (72) |
Ending Balance | 248 |  | 248 |
Beginning balance |  | 130 | 98 | 176
Charge-offs |  | (13) |  | (45)
Recoveries |  | 4 |  | 25
Provision |  | 21 |  | (14)
Ending Balance |  | 142 |  | 142
Consumer and Other [Member] | ASU 2016-13 [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 77 |
Consumer and Other [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | 201 |
Unallocated [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance | 8 |  | 541 |
Provision | 203 |  | 211 |
Ending Balance | $ 211 |  | 211 |
Beginning balance |  | 11 | 541 | 847
Provision |  | 238 |  | (598)
Ending Balance |  | $ 249 |  | $ 249
Unallocated [Member] | ASU 2016-13 [Member] | CECL Loans [Member] |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |
Beginning Balance |  |  | $ (541) |

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