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Investment Securities - Investment Securities in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024 | Jul. 31, 2024
--- | --- | --- | ---
Debt Securities, Available-for-Sale |  |  |
Securities available for sale, amortized cost | $ 439,219 | $ 418,935 |
Securities available for sale, gross unrealized gains | 2,189 | 374 |
Securities available for sale, gross unrealized losses | 19,781 | 30,066 |
Securities available for sale, fair value | 421,627 | 389,243 |
Securities held to maturity, amortized cost | 7,000 | 7,000 | $ 2,000
Securities held to maturity, gross unrealized losses | 1,668 | 2,409 |
Securities held to maturity, fair value | 5,332 | 4,591 |
Agency mortgage-backed securities |  |  |
Debt Securities, Available-for-Sale |  |  |
Securities available for sale, amortized cost | 88,418 | 76,295 |
Securities available for sale, gross unrealized gains | 486 |  |
Securities available for sale, gross unrealized losses | 5,228 | 8,354 |
Securities available for sale, fair value | 83,676 | 67,941 |
Agency CMO |  |  |
Debt Securities, Available-for-Sale |  |  |
Securities available for sale, amortized cost | 96,313 | 47,821 |
Securities available for sale, gross unrealized gains | 833 | 197 |
Securities available for sale, gross unrealized losses | 140 | 500 |
Securities available for sale, fair value | 97,006 | 47,518 |
Agency notes and bonds |  |  |
Debt Securities, Available-for-Sale |  |  |
Securities available for sale, amortized cost | 93,550 | 122,834 |
Securities available for sale, gross unrealized gains | 33 | 6 |
Securities available for sale, gross unrealized losses | 1,756 | 4,760 |
Securities available for sale, fair value | 91,827 | 118,080 |
Treasury notes and bonds |  |  |
Debt Securities, Available-for-Sale |  |  |
Securities available for sale, amortized cost | 5,478 | 21,803 |
Securities available for sale, gross unrealized losses | 37 | 254 |
Securities available for sale, fair value | 5,441 | 21,549 |
Municipal obligations |  |  |
Debt Securities, Available-for-Sale |  |  |
Securities available for sale, amortized cost | 155,460 | 150,182 |
Securities available for sale, gross unrealized gains | 837 | 171 |
Securities available for sale, gross unrealized losses | 12,620 | 16,198 |
Securities available for sale, fair value | 143,677 | 134,155 |
Corporate notes |  |  |
Debt Securities, Available-for-Sale |  |  |
Securities held to maturity, amortized cost | 7,000 | 7,000 |
Securities held to maturity, gross unrealized losses | 1,668 | 2,409 |
Securities held to maturity, fair value | $ 5,332 | $ 4,591 |

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