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Loans and Allowance for Credit Losses - Internal Risk Rating Summary (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Total commercial business loans |  |  |
2023 | $ 301,566 |  |
2022 | 927,564 |  |
2021 | 459,305 |  |
2020 | 143,841 |  |
2019 | 96,656 |  |
Prior | 256,790 |  |
Revolving Loans Amortized Cost Basis | 130,452 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 2,316,174 | $ 2,370,662 |
Gross charge-offs |  |  |
2023 | 1,144 |  |
2022 | 10,836 |  |
2021 | 3,003 |  |
2020 | 141 |  |
2019 | 19 |  |
Prior | 3,336 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total | 18,479 | 15,183 | $ 1,619
Total Commercial |  |  |
Total commercial business loans |  |  |
Total loans | 1,601,688 | 1,610,910 |
Gross charge-offs |  |  |
Total | 4,572 | 2,858 | 1,367
Total Commercial | Business |  |  |
Total commercial business loans |  |  |
2023 | 177,667 |  |
2022 | 286,617 |  |
2021 | 93,739 |  |
2020 | 66,058 |  |
2019 | 55,744 |  |
Prior | 96,960 |  |
Revolving Loans Amortized Cost Basis | 20,315 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 797,100 | 851,072 |
Gross charge-offs |  |  |
2023 | 0 |  |
2022 | 228 |  |
2021 | 1,250 |  |
2020 | 141 |  |
2019 | 0 |  |
Prior | 2,953 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total | 4,572 | 2,858 | 1,284
Total Commercial | Real estate |  |  |
Total commercial business loans |  |  |
2023 | 80,553 |  |
2022 | 149,189 |  |
2021 | 213,612 |  |
2020 | 11,952 |  |
2019 | 32,517 |  |
Prior | 131,522 |  |
Revolving Loans Amortized Cost Basis | 51,239 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 670,584 | 632,839 |
Gross charge-offs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total | 0 | 0 | 83
Total Commercial | Acquisition, development and construction |  |  |
Total commercial business loans |  |  |
2023 | 6,546 |  |
2022 | 54,170 |  |
2021 | 44,187 |  |
2020 | 22,041 |  |
2019 | 0 |  |
Prior | 2,237 |  |
Revolving Loans Amortized Cost Basis | 4,823 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 134,004 | 126,999 |
Gross charge-offs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total | 0 | 0 | 0
Residential real estate |  |  |
Total commercial business loans |  |  |
2023 | 33,867 |  |
2022 | 414,454 |  |
2021 | 100,177 |  |
2020 | 42,475 |  |
2019 | 7,866 |  |
Prior | 22,893 |  |
Revolving Loans Amortized Cost Basis | 50,815 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 672,547 | 609,452 |
Gross charge-offs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 19 |  |
Prior | 381 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total | 400 | 84 | 5
Home equity lines of credit |  |  |
Total commercial business loans |  |  |
2023 | 638 |  |
2022 | 3,942 |  |
2021 | 1,779 |  |
2020 | 1,306 |  |
2019 | 501 |  |
Prior | 3,125 |  |
Revolving Loans Amortized Cost Basis | 3,240 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 14,531 | 18,734 |
Gross charge-offs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total | 0 | 0 | 0
Consumer |  |  |
Total commercial business loans |  |  |
2023 | 2,295 |  |
2022 | 19,192 |  |
2021 | 5,811 |  |
2020 | 9 |  |
2019 | 28 |  |
Prior | 53 |  |
Revolving Loans Amortized Cost Basis | 20 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 27,408 | 131,566 |
Gross charge-offs |  |  |
2023 | 1,144 |  |
2022 | 10,608 |  |
2021 | 1,753 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 2 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total | 13,507 | 12,241 | $ 247
Pass |  |  |
Total commercial business loans |  |  |
2023 | 300,188 |  |
2022 | 890,814 |  |
2021 | 431,438 |  |
2020 | 138,327 |  |
2019 | 85,038 |  |
Prior | 217,610 |  |
Revolving Loans Amortized Cost Basis | 130,366 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 2,193,781 | 2,299,448 |
Pass | Total Commercial |  |  |
Total commercial business loans |  |  |
Total loans |  | 1,544,104 |
Pass | Total Commercial | Business |  |  |
Total commercial business loans |  |  |
2023 | 176,309 |  |
2022 | 251,265 |  |
2021 | 92,307 |  |
2020 | 64,964 |  |
2019 | 50,765 |  |
Prior | 90,355 |  |
Revolving Loans Amortized Cost Basis | 20,315 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 746,280 | 830,319 |
Pass | Total Commercial | Real estate |  |  |
Total commercial business loans |  |  |
2023 | 80,553 |  |
2022 | 149,189 |  |
2021 | 205,651 |  |
2020 | 11,952 |  |
2019 | 26,438 |  |
Prior | 101,322 |  |
Revolving Loans Amortized Cost Basis | 51,239 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 626,344 | 592,997 |
Pass | Total Commercial | Acquisition, development and construction |  |  |
Total commercial business loans |  |  |
2023 | 6,546 |  |
2022 | 54,170 |  |
2021 | 29,535 |  |
2020 | 22,041 |  |
2019 | 0 |  |
Prior | 1,483 |  |
Revolving Loans Amortized Cost Basis | 4,823 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 118,598 | 120,788 |
Pass | Residential real estate |  |  |
Total commercial business loans |  |  |
2023 | 33,867 |  |
2022 | 413,466 |  |
2021 | 96,413 |  |
2020 | 38,169 |  |
2019 | 7,306 |  |
Prior | 21,313 |  |
Revolving Loans Amortized Cost Basis | 50,815 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 661,349 | 605,513 |
Pass | Home equity lines of credit |  |  |
Total commercial business loans |  |  |
2023 | 638 |  |
2022 | 3,798 |  |
2021 | 1,779 |  |
2020 | 1,192 |  |
2019 | 501 |  |
Prior | 3,084 |  |
Revolving Loans Amortized Cost Basis | 3,154 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 14,146 | 18,269 |
Pass | Consumer |  |  |
Total commercial business loans |  |  |
2023 | 2,275 |  |
2022 | 18,926 |  |
2021 | 5,753 |  |
2020 | 9 |  |
2019 | 28 |  |
Prior | 53 |  |
Revolving Loans Amortized Cost Basis | 20 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 27,064 | 131,562 |
Special Mention |  |  |
Total commercial business loans |  |  |
2023 | 990 |  |
2022 | 32,403 |  |
2021 | 22,685 |  |
2020 | 5,090 |  |
2019 | 6,832 |  |
Prior | 15,717 |  |
Revolving Loans Amortized Cost Basis | 86 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 83,803 | 31,258 |
Special Mention | Total Commercial |  |  |
Total commercial business loans |  |  |
Total loans |  | 30,123 |
Special Mention | Total Commercial | Business |  |  |
Total commercial business loans |  |  |
2023 | 990 |  |
2022 | 32,342 |  |
2021 | 72 |  |
2020 | 830 |  |
2019 | 339 |  |
Prior | 3,767 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 38,340 | 5,963 |
Special Mention | Total Commercial | Real estate |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 7,961 |  |
2020 | 0 |  |
2019 | 6,079 |  |
Prior | 11,201 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 25,241 | 18,883 |
Special Mention | Total Commercial | Acquisition, development and construction |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 14,652 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 14,652 | 5,277 |
Special Mention | Residential real estate |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 4,224 |  |
2019 | 414 |  |
Prior | 708 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 5,346 | 760 |
Special Mention | Home equity lines of credit |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 61 |  |
2021 | 0 |  |
2020 | 36 |  |
2019 | 0 |  |
Prior | 41 |  |
Revolving Loans Amortized Cost Basis | 86 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 224 | 375 |
Special Mention | Consumer |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 0 | 0 |
Substandard |  |  |
Total commercial business loans |  |  |
2023 | 388 |  |
2022 | 2,325 |  |
2021 | 4,343 |  |
2020 | 160 |  |
2019 | 4,786 |  |
Prior | 21,966 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 33,968 | 35,287 |
Substandard | Total Commercial |  |  |
Total commercial business loans |  |  |
Total loans |  | 33,637 |
Substandard | Total Commercial | Business |  |  |
Total commercial business loans |  |  |
2023 | 368 |  |
2022 | 988 |  |
2021 | 521 |  |
2020 | 0 |  |
2019 | 4,640 |  |
Prior | 1,436 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 7,953 | 12,103 |
Substandard | Total Commercial | Real estate |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 18,999 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 18,999 | 20,600 |
Substandard | Total Commercial | Acquisition, development and construction |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 754 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 754 | 934 |
Substandard | Residential real estate |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 988 |  |
2021 | 3,764 |  |
2020 | 82 |  |
2019 | 146 |  |
Prior | 777 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 5,757 | 1,556 |
Substandard | Home equity lines of credit |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 83 |  |
2021 | 0 |  |
2020 | 78 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 161 | 90 |
Substandard | Consumer |  |  |
Total commercial business loans |  |  |
2023 | 20 |  |
2022 | 266 |  |
2021 | 58 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 344 | 4 |
Doubtful |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 2,022 |  |
2021 | 839 |  |
2020 | 264 |  |
2019 | 0 |  |
Prior | 1,497 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 4,622 | 4,669 |
Doubtful | Total Commercial |  |  |
Total commercial business loans |  |  |
Total loans |  | 3,046 |
Doubtful | Total Commercial | Business |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 2,022 |  |
2021 | 839 |  |
2020 | 264 |  |
2019 | 0 |  |
Prior | 1,402 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 4,527 | 2,687 |
Doubtful | Total Commercial | Real estate |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 0 | 359 |
Doubtful | Total Commercial | Acquisition, development and construction |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 0 | 0 |
Doubtful | Residential real estate |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 95 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 95 | 1,623 |
Doubtful | Home equity lines of credit |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | 0 | 0 |
Doubtful | Consumer |  |  |
Total commercial business loans |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Converted to Term | 0 |  |
Total loans | $ 0 | $ 0 |

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