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FAIR VALUE - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Investment securities: |  |  |  |
Investment securities | $ 513,519 | $ 513,728 |  |
U.S. Treasury securities |  |  |  |
Investment securities: |  |  |  |
Investment securities | 17,840 | 17,291 |  |
U.S. government agencies |  |  |  |
Investment securities: |  |  |  |
Investment securities | 4,151 | 5,135 |  |
States and political subdivisions |  |  |  |
Investment securities: |  |  |  |
Investment securities | 203,122 | 197,414 |  |
GSE residential MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 57,632 | 59,402 |  |
GSE residential CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 73,102 | 68,378 |  |
Non-agency CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 44,669 | 39,758 |  |
Other |  |  |  |
Investment securities: |  |  |  |
Investment securities | 126 | 377 |  |
Fair Value, Measurements, Recurring |  |  |  |
Investment securities: |  |  |  |
Loans held for sale | 5,816 | 10,880 |  |
Totals | 530,718 | 535,125 |  |
Fair Value, Measurements, Recurring | Interest rate swaps |  |  |  |
Investment securities: |  |  |  |
Derivatives | 11,383 | 10,517 |  |
Financial Liabilities |  |  |  |
Derivatives | 13,464 | 11,333 |  |
Fair Value, Measurements, Recurring | U.S. Treasury securities |  |  |  |
Investment securities: |  |  |  |
Investment securities | 17,840 | 17,291 |  |
Fair Value, Measurements, Recurring | U.S. government agencies |  |  |  |
Investment securities: |  |  |  |
Investment securities | 4,151 |  |  | $ 5,135
Fair Value, Measurements, Recurring | States and political subdivisions |  |  |  |
Investment securities: |  |  |  |
Investment securities | 203,122 | 197,414 |  |
Fair Value, Measurements, Recurring | GSE residential MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 57,632 | 59,402 |  |
Fair Value, Measurements, Recurring | GSE Commercial MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities |  |  | $ 4,743 |
Fair Value, Measurements, Recurring | GSE residential CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 73,102 | 68,378 |  |
Fair Value, Measurements, Recurring | Non-agency CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 44,669 | 39,758 |  |
Fair Value, Measurements, Recurring | Asset-backed |  |  |  |
Investment securities: |  |  |  |
Investment securities | 108,134 | 125,973 |  |
Fair Value, Measurements, Recurring | Other |  |  |  |
Investment securities: |  |  |  |
Investment securities | 126 | 377 |  |
Fair Value, Measurements, Recurring | Level 1 |  |  |  |
Investment securities: |  |  |  |
Loans held for sale | 0 | 0 |  |
Totals | 17,966 | 17,668 |  |
Fair Value, Measurements, Recurring | Level 1 | Interest rate swaps |  |  |  |
Investment securities: |  |  |  |
Derivatives | 0 | 0 |  |
Financial Liabilities |  |  |  |
Derivatives | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 1 | U.S. Treasury securities |  |  |  |
Investment securities: |  |  |  |
Investment securities | 17,840 | 17,291 |  |
Fair Value, Measurements, Recurring | Level 1 | U.S. government agencies |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 |  |  | 0
Fair Value, Measurements, Recurring | Level 1 | States and political subdivisions |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 1 | GSE residential MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 1 | GSE Commercial MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities |  |  | 0 |
Fair Value, Measurements, Recurring | Level 1 | GSE residential CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 1 | Non-agency CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 1 | Asset-backed |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 1 | Other |  |  |  |
Investment securities: |  |  |  |
Investment securities | 126 | 377 |  |
Fair Value, Measurements, Recurring | Level 2 |  |  |  |
Investment securities: |  |  |  |
Loans held for sale | 5,816 | 10,880 |  |
Totals | 484,844 | 490,229 |  |
Fair Value, Measurements, Recurring | Level 2 | Interest rate swaps |  |  |  |
Investment securities: |  |  |  |
Derivatives | 11,328 | 10,482 |  |
Financial Liabilities |  |  |  |
Derivatives | 13,464 | 11,333 |  |
Fair Value, Measurements, Recurring | Level 2 | U.S. Treasury securities |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 2 | U.S. government agencies |  |  |  |
Investment securities: |  |  |  |
Investment securities | 4,151 |  |  | 5,135
Fair Value, Measurements, Recurring | Level 2 | States and political subdivisions |  |  |  |
Investment securities: |  |  |  |
Investment securities | 197,060 | 191,488 |  |
Fair Value, Measurements, Recurring | Level 2 | GSE residential MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 57,632 | 59,402 |  |
Fair Value, Measurements, Recurring | Level 2 | GSE Commercial MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities |  |  | 4,743 |
Fair Value, Measurements, Recurring | Level 2 | GSE residential CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 73,102 | 68,378 |  |
Fair Value, Measurements, Recurring | Level 2 | Non-agency CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 22,878 | 18,491 |  |
Fair Value, Measurements, Recurring | Level 2 | Asset-backed |  |  |  |
Investment securities: |  |  |  |
Investment securities | 108,134 | 125,973 |  |
Fair Value, Measurements, Recurring | Level 2 | Other |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 3 |  |  |  |
Investment securities: |  |  |  |
Loans held for sale | 0 | 0 |  |
Totals | 27,908 | 27,228 |  |
Fair Value, Measurements, Recurring | Level 3 | Interest rate swaps |  |  |  |
Investment securities: |  |  |  |
Derivatives | 55 | 35 |  |
Financial Liabilities |  |  |  |
Derivatives | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 3 | U.S. Treasury securities |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 3 | U.S. government agencies |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 |  |  | $ 0
Fair Value, Measurements, Recurring | Level 3 | States and political subdivisions |  |  |  |
Investment securities: |  |  |  |
Investment securities | 6,062 | 5,926 |  |
Fair Value, Measurements, Recurring | Level 3 | GSE residential MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 3 | GSE Commercial MBSs |  |  |  |
Investment securities: |  |  |  |
Investment securities |  |  | $ 0 |
Fair Value, Measurements, Recurring | Level 3 | GSE residential CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 3 | Non-agency CMOs |  |  |  |
Investment securities: |  |  |  |
Investment securities | 21,791 | 21,267 |  |
Fair Value, Measurements, Recurring | Level 3 | Asset-backed |  |  |  |
Investment securities: |  |  |  |
Investment securities | 0 | 0 |  |
Fair Value, Measurements, Recurring | Level 3 | Other |  |  |  |
Investment securities: |  |  |  |
Investment securities | $ 0 | $ 0 |  |

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