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Loans and Allowance for Credit Losses on Loans - Schedule of Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | $ 29,854 |  | $ 30,675 | $ 30,656 | $ 25,172 | $ 25,172
Provision (Reversal) | 0 | $ 0 | 0 | 75 | 5,550 |
(Charge-offs) | (1) |  | 0 | (878) | (51) |
Recoveries | 0 |  | 0 | 0 | 4 |
Ending balance | 29,853 | 29,854 | 30,675 | 29,853 | 30,675 | 30,656
Commercial Portfolio Segment | Commercial and industrial |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | 1,608 |  | 1,876 | 1,576 | 1,712 | 1,712
Provision (Reversal) | 286 |  | (158) | 370 | 38 |
(Charge-offs) | (1) |  | 0 | (53) | (33) |
Recoveries | 0 |  | 0 | 0 | 1 |
Ending balance | 1,893 | 1,608 | 1,718 | 1,893 | 1,718 | 1,576
Commercial real estate loans | Commercial owner-occupied |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | 2,402 |  | 2,408 | 2,361 | 2,476 | 2,476
Provision (Reversal) | 63 |  | (63) | 104 | (131) |
(Charge-offs) | 0 |  | 0 | 0 | 0 |
Recoveries | 0 |  | 0 | 0 | 0 |
Ending balance | 2,465 | 2,402 | 2,345 | 2,465 | 2,345 | 2,361
Commercial real estate loans | Commercial non-owner occupied |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | 21,516 |  | 22,165 | 22,093 | 14,933 | 14,933
Provision (Reversal) | (359) |  | (65) | (127) | 7,167 |
(Charge-offs) | 0 |  | 0 | (809) | 0 |
Recoveries | 0 |  | 0 | 0 | 0 |
Ending balance | 21,157 | 21,516 | 22,100 | 21,157 | 22,100 | 22,093
Commercial real estate loans | Construction |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | 384 |  | 874 | 638 | 1,832 | 1,832
Provision (Reversal) | (155) |  | (214) | (409) | (1,172) |
(Charge-offs) | 0 |  | 0 | 0 | 0 |
Recoveries | 0 |  | 0 | 0 | 0 |
Ending balance | 229 | 384 | 660 | 229 | 660 | 638
Residential Portfolio Segment | Home equity |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | 783 |  | 650 | 684 | 552 | 552
Provision (Reversal) | (16) |  | (3) | 83 | 95 |
(Charge-offs) | 0 |  | 0 | 0 | 0 |
Recoveries | 0 |  | 0 | 0 | 0 |
Ending balance | 767 | 783 | 647 | 767 | 647 | 684
Residential Portfolio Segment | Other residential |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | 1,110 |  | 769 | 1,141 | 653 | 653
Provision (Reversal) | 80 |  | 376 | 49 | 492 |
(Charge-offs) | 0 |  | 0 | 0 | 0 |
Recoveries | 0 |  | 0 | 0 | 0 |
Ending balance | 1,190 | 1,110 | 1,145 | 1,190 | 1,145 | 1,141
Installment and other consumer loans | Installment and other consumer loans |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | 871 |  | 910 | 908 | 976 | 976
Provision (Reversal) | 110 |  | 10 | 89 | (41) |
(Charge-offs) | 0 |  | 0 | (16) | (18) | (58)
Recoveries | 0 |  | 0 | 0 | 3 |
Ending balance | 981 | 871 | 920 | 981 | 920 | 908
Unallocated |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance | 1,180 |  | 1,023 | 1,255 | 2,038 | 2,038
Provision (Reversal) | (9) |  | 117 | (84) | (898) |
(Charge-offs) | 0 |  | 0 | 0 | 0 |
Recoveries | 0 |  | 0 | 0 | 0 |
Ending balance | $ 1,171 | $ 1,180 | $ 1,140 | $ 1,171 | $ 1,140 | $ 1,255

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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