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Loans and Allowance for Credit Losses - Changes in allowance (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Changes in the allowance |  |  |
Beginning balance | $ 31,146 | $ 31,572 | $ 34,246
Provision for credit losses | (225) |  | (3,500)
Loan charge-offs | (613) | (1,549) | (1,922)
Loan recoveries | 1,678 | 1,123 | 2,748
Ending balance | 35,843 | 31,146 | 31,572
Provision for off-balance sheet credit loss | 2,200 |  |
Debt securities held-to-maturity credit loss | 40 |  |
Increase (Decrease) in allowance for credit loss | $ 4,700 |  |
Percentage of increase in ACL compared to previous year | 15.10% |  |
Increase in reserve dur to elevated risk of credit loss | $ 840 |  |
Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | 3,857 |  |
Ending balance |  | 3,857 |
Commercial |  |  |
Changes in the allowance |  |  |
Beginning balance | 23,431 | 22,806 | 25,811
Provision for credit losses | 1,992 | 1,350 | (3,721)
Loan charge-offs | (436) | (1,396) | (1,766)
Loan recoveries | 1,204 | 671 | 2,482
Ending balance | 27,902 | 23,431 | 22,806
Commercial | Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | 1,711 |  |
Ending balance |  | 1,711 |
Commercial | Commercial and industrial |  |  |
Changes in the allowance |  |  |
Beginning balance | 9,233 | 9,218 | 10,547
Provision for credit losses | 645 | 950 | (1,759)
Loan charge-offs | (436) | (1,396) | (1,230)
Loan recoveries | 1,159 | 461 | 1,660
Ending balance | 9,894 | 9,233 | 9,218
Commercial | Commercial and industrial | Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | (707) |  |
Ending balance |  | (707) |
Commercial | Real estate construction |  |  |
Changes in the allowance |  |  |
Beginning balance | 1,437 | 810 | 690
Provision for credit losses | 2,125 | 551 | 120
Loan recoveries |  | 76 |
Ending balance | 6,111 | 1,437 | 810
Commercial | Real estate construction | Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | 2,549 |  |
Ending balance |  | 2,549 |
Commercial | Commercial real estate |  |  |
Changes in the allowance |  |  |
Beginning balance | 12,761 | 12,778 | 14,574
Provision for credit losses | (778) | (151) | (2,082)
Loan charge-offs |  |  | (536)
Loan recoveries | 45 | 134 | 822
Ending balance | 11,897 | 12,761 | 12,778
Commercial | Commercial real estate | Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | (131) |  |
Ending balance |  | (131) |
Consumer |  |  |
Changes in the allowance |  |  |
Beginning balance | 7,715 | 8,766 | 8,435
Provision for credit losses | (2,217) | (1,350) | 221
Loan charge-offs | (177) | (153) | (156)
Loan recoveries | 474 | 452 | 266
Ending balance | 7,941 | 7,715 | 8,766
Consumer | Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | 2,146 |  |
Ending balance |  | 2,146 |
Consumer | Residential | Real estate first mortgage |  |  |
Changes in the allowance |  |  |
Beginning balance | 5,857 | 6,874 | 6,174
Provision for credit losses | (1,829) | (1,017) | 700
Loan charge-offs | (49) |  |
Loan recoveries | 330 |  |
Ending balance | 6,578 | 5,857 | 6,874
Consumer | Residential | Real estate first mortgage | Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | 2,269 |  |
Ending balance |  | 2,269 |
Consumer | Residential | Real estate junior lien |  |  |
Changes in the allowance |  |  |
Beginning balance | 1,318 | 1,380 | 1,472
Provision for credit losses | (115) | (344) | (215)
Loan charge-offs | (77) |  |
Loan recoveries | 52 | 282 | 123
Ending balance | 1,151 | 1,318 | 1,380
Consumer | Residential | Real estate junior lien | Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | (27) |  |
Ending balance |  | (27) |
Consumer | Other revolving and installment |  |  |
Changes in the allowance |  |  |
Beginning balance | 540 | 512 | 789
Provision for credit losses | (273) | 11 | (264)
Loan charge-offs | (51) | (153) | (156)
Loan recoveries | 92 | 170 | 143
Ending balance | 212 | 540 | $ 512
Consumer | Other revolving and installment | Adoption of CECL | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Changes in the allowance |  |  |
Beginning balance | $ (96) |  |
Ending balance |  | $ (96) |

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