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Investment Securities - Securities Temporarily Impaired (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024
--- | --- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair Value (Estimated) (Less than 12 months) | $ 11,936 | $ 23,512 | $ 14,235
Unrealized Losses (Less than 12 months) | (348) | (292) | (108)
Fair Value (Estimated) (12 months or more) | 228,917 | 234,055 | 245,549
Unrealized Losses (12 months or more) | (47,282) | (53,876) | (54,858)
Fair Value (Estimated) | 240,853 | 257,567 | 259,784
Unrealized Losses | (47,630) | (54,168) | (54,966)
U.S. Treasury & Agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair Value (Estimated) (Less than 12 months) | 0 | 0 | 0
Unrealized Losses (Less than 12 months) | 0 | 0 | 0
Fair Value (Estimated) (12 months or more) | 19,034 | 19,796 | 19,778
Unrealized Losses (12 months or more) | (5,510) | (6,246) | (6,260)
Fair Value (Estimated) | 19,034 | 19,796 | 19,778
Unrealized Losses | (5,510) | (6,246) | (6,260)
Mortgage-backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair Value (Estimated) (Less than 12 months) | 5,994 | 18,544 | 8,451
Unrealized Losses (Less than 12 months) | (91) | (222) | (43)
Fair Value (Estimated) (12 months or more) | 182,167 | 186,155 | 197,155
Unrealized Losses (12 months or more) | (34,613) | (40,804) | (41,758)
Fair Value (Estimated) | 188,161 | 204,699 | 205,606
Unrealized Losses | (34,704) | (41,026) | (41,801)
State and political subdivisions |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair Value (Estimated) (Less than 12 months) | 4,791 | 4,968 | 4,484
Unrealized Losses (Less than 12 months) | (241) | (70) | (62)
Fair Value (Estimated) (12 months or more) | 27,716 | 28,104 | 28,616
Unrealized Losses (12 months or more) | (7,159) | (6,826) | (6,840)
Fair Value (Estimated) | 32,507 | 33,072 | 33,100
Unrealized Losses | (7,400) | $ (6,896) | (6,902)
Asset-backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Fair Value (Estimated) (Less than 12 months) | 1,151 |  | 1,300
Unrealized Losses (Less than 12 months) | (16) |  | (3)
Fair Value (Estimated) (12 months or more) | 0 |  | 0
Unrealized Losses (12 months or more) | 0 |  | 0
Fair Value (Estimated) | 1,151 |  | 1,300
Unrealized Losses | $ (16) |  | $ (3)

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