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Loans and Allowance for Loan Losses - Changes in allowance (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Changes in the allowance |  |  |
Beginning Balance | $ 31,572 | $ 34,246 | $ 23,924
Provision for loan losses |  | (3,500) | 10,900
Loan charge-offs | (1,549) | (1,922) | (5,368)
Loan recoveries | 1,123 | 2,748 | 4,790
Ending Balance | 31,146 | 31,572 | 34,246
Unallocated |  |  |
Changes in the allowance |  |  |
Beginning Balance | 1,180 | 1,378 | 2,192
Provision for loan losses | (912) | (198) | (814)
Ending Balance | 268 | 1,180 | 1,378
Commercial |  |  |
Changes in the allowance |  |  |
Beginning Balance | 22,084 | 24,968 | 19,261
Provision for loan losses | 1,933 | (3,600) | 6,372
Loan charge-offs | (1,396) | (1,766) | (5,114)
Loan recoveries | 671 | 2,482 | 4,449
Ending Balance | 23,292 | 22,084 | 24,968
Commercial | Commercial and industrial |  |  |
Changes in the allowance |  |  |
Beginning Balance | 8,925 | 10,205 | 12,270
Provision for loan losses | 1,168 | (1,710) | (2,168)
Loan charge-offs | (1,396) | (1,230) | (4,249)
Loan recoveries | 461 | 1,660 | 4,352
Ending Balance | 9,158 | 8,925 | 10,205
Commercial | Real estate construction |  |  |
Changes in the allowance |  |  |
Beginning Balance | 783 | 658 | 303
Provision for loan losses | 587 | 125 | 355
Loan recoveries | 76 |  |
Ending Balance | 1,446 | 783 | 658
Commercial | Commercial real estate |  |  |
Changes in the allowance |  |  |
Beginning Balance | 12,376 | 14,105 | 6,688
Provision for loan losses | 178 | (2,015) | 8,185
Loan charge-offs |  | (536) | (865)
Loan recoveries | 134 | 822 | 97
Ending Balance | 12,688 | 12,376 | 14,105
Consumer |  |  |
Changes in the allowance |  |  |
Beginning Balance | 8,308 | 7,900 | 2,471
Provision for loan losses | (1,021) | 298 | 5,342
Loan charge-offs | (153) | (156) | (254)
Loan recoveries | 452 | 266 | 341
Ending Balance | 7,586 | 8,308 | 7,900
Consumer | Residential | Real estate first mortgage |  |  |
Changes in the allowance |  |  |
Beginning Balance | 6,532 | 5,774 | 1,448
Provision for loan losses | (763) | 758 | 4,321
Loan recoveries |  |  | 5
Ending Balance | 5,769 | 6,532 | 5,774
Consumer | Residential | Real estate junior lien |  |  |
Changes in the allowance |  |  |
Beginning Balance | 1,295 | 1,373 | 671
Provision for loan losses | (288) | (201) | 507
Loan charge-offs |  |  | (12)
Loan recoveries | 282 | 123 | 207
Ending Balance | 1,289 | 1,295 | 1,373
Consumer | Other revolving and installment |  |  |
Changes in the allowance |  |  |
Beginning Balance | 481 | 753 | 352
Provision for loan losses | 30 | (259) | 514
Loan charge-offs | (153) | (156) | (242)
Loan recoveries | 170 | 143 | 129
Ending Balance | $ 528 | $ 481 | $ 753

X
- Definition Amount of increase in allowance for credit loss on accounts receivable, from recovery. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI https://asc.fasb.org/extlink&oid=122038336&loc=d3e74567-122707 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI https://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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