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Securities - Available for sale Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 464,684 | $ 494,092
Gross Unrealized Gains | 1,692 | 2,465
Gross Unrealized Losses | (35,955) | (34,113)
Fair Value | 430,421 | 462,444
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 28,944 | 45,883
Gross Unrealized Losses | (638) | (780)
Fair Value | 28,306 | 45,103
U.S. government agencies and corporations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 84,380 | 96,407
Gross Unrealized Losses | (9,662) | (9,313)
Fair Value | 74,718 | 87,094
Mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 176,686 | 177,734
Gross Unrealized Gains | 52 | 185
Gross Unrealized Losses | (17,550) | (16,223)
Fair Value | 159,188 | 161,696
Obligations of states and political subdivisions |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 149,497 | 148,875
Gross Unrealized Gains | 1,640 | 2,280
Gross Unrealized Losses | (4,486) | (4,044)
Fair Value | 146,651 | 147,111
Corporate and other debt securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 25,177 | 25,193
Gross Unrealized Losses | (3,619) | (3,753)
Fair Value | $ 21,558 | $ 21,440

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