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Securities - Schedule of Debt Securities, Held-to-Maturity (Details) - USD ($) | Sep. 30, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
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Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  |  |  |  |  |
Carrying Value | $ 321,450,000 |  | $ 339,436,000 |  |  |
Debt securities, held-to-maturity, transferred unrealized loss | 13,766,000 |  | 16,171,000 |  |  |
Debt securities, held-to-maturity, allowance for credit loss | 92,000 | $ 133,000 | 132,000 | $ 133,000 | $ 155,000 | $ 157,000
Amortized Cost | 335,308,000 |  | 355,739,000 |  |  |
Debt securities, held-to-maturity, unrealized gains | 43,000 |  | 28,000 |  |  |
Debt securities, held-to-maturity, unrealized losses | 42,109,000 |  | 53,907,000 |  |  |
Debt securities, held-to-maturity, fair value | 293,242,000 |  | 301,860,000 |  |  |
U.S. agency |  |  |  |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  |  |  |  |  |
Carrying Value | 23,119,000 |  | 24,150,000 |  |  |
Debt securities, held-to-maturity, transferred unrealized loss | 1,280,000 |  | 1,404,000 |  |  |
Debt securities, held-to-maturity, allowance for credit loss | 0 |  | 0 |  |  |
Amortized Cost | 24,399,000 |  | 25,554,000 |  |  |
Debt securities, held-to-maturity, unrealized gains | 0 |  | 0 |  |  |
Debt securities, held-to-maturity, unrealized losses | 3,929,000 |  | 4,987,000 |  |  |
Debt securities, held-to-maturity, fair value | 20,470,000 |  | 20,567,000 |  |  |
U.S. agency residential mortgage-backed |  |  |  |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  |  |  |  |  |
Carrying Value | 94,648,000 |  | 100,700,000 |  |  |
Debt securities, held-to-maturity, transferred unrealized loss | 7,916,000 |  | 8,669,000 |  |  |
Debt securities, held-to-maturity, allowance for credit loss | 0 |  | 0 |  |  |
Amortized Cost | 102,564,000 |  | 109,369,000 |  |  |
Debt securities, held-to-maturity, unrealized gains | 0 |  | 0 |  |  |
Debt securities, held-to-maturity, unrealized losses | 19,715,000 |  | 24,631,000 |  |  |
Debt securities, held-to-maturity, fair value | 82,849,000 |  | 84,738,000 |  |  |
U.S. agency commercial mortgage-backed |  |  |  |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  |  |  |  |  |
Carrying Value | 3,926,000 |  | 4,013,000 |  |  |
Debt securities, held-to-maturity, transferred unrealized loss | 76,000 |  | 107,000 |  |  |
Debt securities, held-to-maturity, allowance for credit loss | 0 |  | 0 |  |  |
Amortized Cost | 4,002,000 |  | 4,120,000 |  |  |
Debt securities, held-to-maturity, unrealized gains | 0 |  | 0 |  |  |
Debt securities, held-to-maturity, unrealized losses | 261,000 |  | 402,000 |  |  |
Debt securities, held-to-maturity, fair value | 3,741,000 |  | 3,718,000 |  |  |
Private label mortgage-backed |  |  |  |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  |  |  |  |  |
Carrying Value | 7,310,000 |  | 7,350,000 |  |  |
Debt securities, held-to-maturity, transferred unrealized loss | 106,000 |  | 190,000 |  |  |
Debt securities, held-to-maturity, allowance for credit loss | 2,000 | 1,000 | 1,000 | 1,000 | 4,000 | 4,000
Amortized Cost | 7,418,000 |  | 7,541,000 |  |  |
Debt securities, held-to-maturity, unrealized gains | 0 |  | 0 |  |  |
Debt securities, held-to-maturity, unrealized losses | 315,000 |  | 551,000 |  |  |
Debt securities, held-to-maturity, fair value | 7,103,000 |  | 6,990,000 |  |  |
Obligations of states and political subdivisions |  |  |  |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  |  |  |  |  |
Carrying Value | 150,784,000 |  | 156,305,000 |  |  |
Debt securities, held-to-maturity, transferred unrealized loss | 4,089,000 |  | 5,262,000 |  |  |
Debt securities, held-to-maturity, allowance for credit loss | 19,000 | 17,000 | 17,000 | 17,000 | 31,000 | 33,000
Amortized Cost | 154,892,000 |  | 161,584,000 |  |  |
Debt securities, held-to-maturity, unrealized gains | 43,000 |  | 28,000 |  |  |
Debt securities, held-to-maturity, unrealized losses | 15,366,000 |  | 19,461,000 |  |  |
Debt securities, held-to-maturity, fair value | 139,569,000 |  | 142,151,000 |  |  |
Corporate |  |  |  |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  |  |  |  |  |
Carrying Value | 40,706,000 |  | 45,964,000 |  |  |
Debt securities, held-to-maturity, transferred unrealized loss | 260,000 |  | 496,000 |  |  |
Debt securities, held-to-maturity, allowance for credit loss | 67,000 | 111,000 | 111,000 | 111,000 | 116,000 | 116,000
Amortized Cost | 41,033,000 |  | 46,571,000 |  |  |
Debt securities, held-to-maturity, unrealized gains | 0 |  | 0 |  |  |
Debt securities, held-to-maturity, unrealized losses | 2,523,000 |  | 3,875,000 |  |  |
Debt securities, held-to-maturity, fair value | 38,510,000 |  | 42,696,000 |  |  |
Trust preferred |  |  |  |  |  |
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss |  |  |  |  |  |
Carrying Value | 957,000 |  | 954,000 |  |  |
Debt securities, held-to-maturity, transferred unrealized loss | 39,000 |  | 43,000 |  |  |
Debt securities, held-to-maturity, allowance for credit loss | 4,000 | $ 4,000 | 3,000 | $ 4,000 | $ 4,000 | $ 4,000
Amortized Cost | 1,000,000 |  | 1,000,000 |  |  |
Debt securities, held-to-maturity, unrealized gains | 0 |  | 0 |  |  |
Debt securities, held-to-maturity, unrealized losses | 0 |  | 0 |  |  |
Debt securities, held-to-maturity, fair value | $ 1,000,000 |  | $ 1,000,000 |  |  |

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