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Securities - Fair Value of Securities Available for Sale and The Related Unrealized Gains and Losses Recognized in Accumulated Comprehensive Income (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, fair value | $ 125 | $ 44,335
Less than 12 months, unrealized losses | 6 | 3,324
Fair value, more than 12 months | 332,668 | 308,253
Unrealized loss, more than 12 months | 80,131 | 68,682
Fair value | 332,793 | 352,588
Unrealized losses | 80,137 | 72,006
U.S. Government and federal agency [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, fair value | 0 | 0
Less than 12 months, unrealized losses | 0 | 0
Fair value, more than 12 months | 2,575 | 2,545
Unrealized loss, more than 12 months | 396 | 421
Fair value | 2,575 | 2,545
Unrealized losses | 396 | 421
State and Municipal [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, fair value | 125 | 13,457
Less than 12 months, unrealized losses | 6 | 1,899
Fair value, more than 12 months | 153,293 | 149,016
Unrealized loss, more than 12 months | 42,980 | 37,456
Fair value | 153,418 | 162,473
Unrealized losses | 42,986 | 39,355
Mortgage-backed [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, fair value | 0 | 25,582
Less than 12 months, unrealized losses | 0 | 822
Fair value, more than 12 months | 160,946 | 145,024
Unrealized loss, more than 12 months | 33,599 | 29,046
Fair value | 160,946 | 170,606
Unrealized losses | 33,599 | 29,868
Corporate [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, fair value | 0 | 5,296
Less than 12 months, unrealized losses | 0 | 603
Fair value, more than 12 months | 15,251 | 10,771
Unrealized loss, more than 12 months | 3,117 | 1,682
Fair value | 15,251 | 16,067
Unrealized losses | 3,117 | 2,285
Asset-backed Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, fair value | 0 | 0
Less than 12 months, unrealized losses | 0 | 0
Fair value, more than 12 months | 603 | 897
Unrealized loss, more than 12 months | 39 | 77
Fair value | 603 | 897
Unrealized losses | $ 39 | $ 77

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