Commitments and Contingencies (ACL on Unfunded Commitments Rollforward) (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Off-Balance Sheet, Credit Loss, Liability [Roll Forward] | ||||
| Beginning balance | $ 1,340,000 | $ 1,190,000 | $ 1,140,000 | $ 1,440,000 |
| Provision | 0 | (150,000) | 200,000 | (400,000) |
| Ending balance | 1,340,000 | 1,040,000 | 1,340,000 | 1,040,000 |
| Commercial real estate | ||||
| Off-Balance Sheet, Credit Loss, Liability [Roll Forward] | ||||
| Beginning balance | 717,000 | 420,000 | 518,000 | 822,000 |
| Provision | 69,000 | 6,000 | 268,000 | (396,000) |
| Ending balance | 786,000 | 426,000 | 786,000 | 426,000 |
| Commercial & industrial | ||||
| Off-Balance Sheet, Credit Loss, Liability [Roll Forward] | ||||
| Beginning balance | 582,000 | 741,000 | 590,000 | 589,000 |
| Provision | (59,000) | (158,000) | (67,000) | (6,000) |
| Ending balance | 523,000 | 583,000 | 523,000 | 583,000 |
| Total commercial | ||||
| Off-Balance Sheet, Credit Loss, Liability [Roll Forward] | ||||
| Beginning balance | 1,299,000 | 1,161,000 | 1,108,000 | 1,411,000 |
| Provision | 10,000 | (152,000) | 201,000 | (402,000) |
| Ending balance | 1,309,000 | 1,009,000 | 1,309,000 | 1,009,000 |
| Residential real estate | ||||
| Off-Balance Sheet, Credit Loss, Liability [Roll Forward] | ||||
| Beginning balance | 34,000 | 20,000 | 23,000 | 18,000 |
| Provision | (8,000) | 2,000 | 3,000 | 4,000 |
| Ending balance | 26,000 | 22,000 | 26,000 | 22,000 |
| Home equity | ||||
| Off-Balance Sheet, Credit Loss, Liability [Roll Forward] | ||||
| Beginning balance | 0 | 0 | 0 | 0 |
| Provision | 0 | 0 | 0 | 0 |
| Ending balance | 0 | 0 | 0 | 0 |
| Other | ||||
| Off-Balance Sheet, Credit Loss, Liability [Roll Forward] | ||||
| Beginning balance | 7,000 | 9,000 | 9,000 | 11,000 |
| Provision | (2,000) | 0 | (4,000) | (2,000) |
| Ending balance | 5,000 | 9,000 | 5,000 | 9,000 |
| Total consumer | ||||
| Off-Balance Sheet, Credit Loss, Liability [Roll Forward] | ||||
| Beginning balance | 7,000 | 9,000 | 9,000 | 11,000 |
| Provision | (2,000) | 0 | (4,000) | (2,000) |
| Ending balance | $ 5,000 | $ 9,000 | $ 5,000 | $ 9,000 |