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Allowance for Credit Losses - Loans - Allowance for credit losses by loan portfolio segment (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | $ 14,060,000 | $ 14,060,000 | $ 14,611,000 | $ 14,060,000 | $ 14,611,000 | $ 13,912,000 | $ 13,812,000 | $ 14,639,000 | $ 15,053,000
Charge-Offs | (2,800,000) | (2,977,000) | (252,000) | (3,081,000) | (416,000) |  |  |  |
Recoveries |  | 69,000 | 41,000 | 109,000 | 84,000 |  |  |  |
Provision (Recovery) |  | 3,156,000 | 183,000 | 3,120,000 | (110,000) |  |  |  |
Other commercial real estate (non-owner occupied) |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | 4,317,000 | 4,317,000 | 4,665,000 | 4,317,000 | 4,665,000 | 3,451,000 | 3,586,000 | 4,616,000 | 3,428,000
Charge-Offs |  | (2,762,000) |  | (2,762,000) |  |  |  |  |
Recoveries |  | 3,000 | 3,000 | 6,000 | 5,000 |  |  |  |
Provision (Recovery) |  | 3,490,000 | 46,000 | 3,622,000 | 1,232,000 |  |  |  |
Commercial Portfolio Segment |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | 1,446,000 | 1,446,000 |  | 1,446,000 |  | 1,478,000 |  |  |
Charge-Offs |  |  |  | (2,962,000) |  | (1,998,000) |  |  |
Provision (Recovery) |  |  |  | (32,000) |  |  |  |  |
Commercial Portfolio Segment | Commercial real estate (owner occupied) |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | 319,000 | 319,000 | 371,000 | 319,000 | 371,000 | 398,000 | 329,000 | 416,000 | 1,529,000
Recoveries |  | 6,000 | 6,000 | 12,000 | 12,000 |  |  |  |
Provision (Recovery) |  | (16,000) | (51,000) | (91,000) | (1,170,000) |  |  |  |
Commercial Portfolio Segment | Commercial and industrial |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | 3,012,000 | 3,012,000 | 2,678,000 | 3,012,000 | 2,678,000 | 2,860,000 | 2,879,000 | 2,667,000 | 3,030,000
Charge-Offs |  | (200,000) | (189,000) | (200,000) | (292,000) | (427,000) |  |  |
Recoveries |  | 32,000 | 9,000 | 43,000 | 21,000 |  |  |  |
Provision (Recovery) |  | 301,000 | 191,000 | 309,000 | (81,000) |  |  |  |
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - retail |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | 3,516,000 | 3,516,000 | 3,519,000 | 3,516,000 | 3,519,000 | 3,695,000 | 3,817,000 | 3,606,000 | 3,488,000
Provision (Recovery) |  | (301,000) | (87,000) | (179,000) | 31,000 |  |  |  |
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - multi-family |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | 1,446,000 | 1,446,000 | 1,370,000 | 1,446,000 | 1,370,000 | 1,478,000 | 1,619,000 | 1,358,000 | 1,430,000
Recoveries |  |  | 1,000 |  | 3,000 |  |  |  |
Provision (Recovery) |  | (173,000) | 11,000 |  | (63,000) |  |  |  |
Commercial Portfolio Segment | Other commercial real estate (non-owner occupied) |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Charge-Offs |  |  |  | (2,762,000) |  | (1,571,000) |  |  |
Residential mortgages |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | 310,000 | 310,000 | 852,000 | 310,000 | 852,000 | 839,000 | 391,000 | 847,000 | 1,021,000
Recoveries |  | 1,000 | 2,000 | 2,000 | 3,000 |  |  |  |
Provision (Recovery) |  | (82,000) | 3,000 | (531,000) | (172,000) |  |  |  |
Consumer |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses - Loans | $ 1,140,000 | 1,140,000 | 1,156,000 | 1,140,000 | 1,156,000 | 1,191,000 | $ 1,191,000 | $ 1,129,000 | $ 1,127,000
Charge-Offs |  | (15,000) | (63,000) | (119,000) | (124,000) | $ (207,000) |  |  |
Recoveries |  | 27,000 | 20,000 | 46,000 | 40,000 |  |  |  |
Provision (Recovery) |  | $ (63,000) | $ 70,000 | $ 22,000 | $ 113,000 |  |  |  |

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