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INVESTMENT SECURITIES - Available-for-Sale Securities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale |  |
Amortized Cost | $ 190,344 | $ 202,846
Gross Unrealized Gains | 173 | 1,385
Gross Unrealized Losses | 24,526 | 1,163
Estimated Fair Value | 165,991 | 203,068
U.S. government agency obligations |  |
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale |  |
Amortized Cost | 18,373 | 25,826
Gross Unrealized Gains | 173 | 440
Gross Unrealized Losses | 233 | 1
Estimated Fair Value | 18,313 | 26,265
Obligations of states and political subdivisions |  |
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale |  |
Amortized Cost | 0 | 140
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Estimated Fair Value | 0 | 140
Mortgage-backed securities |  |
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale |  |
Amortized Cost | 97,458 | 107,636
Gross Unrealized Gains | 0 | 409
Gross Unrealized Losses | 18,848 | 878
Estimated Fair Value | 78,610 | 107,167
Corporate debt securities |  |
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale |  |
Amortized Cost | 44,636 | 35,342
Gross Unrealized Gains | 0 | 403
Gross Unrealized Losses | 4,385 | 157
Estimated Fair Value | 40,251 | 35,588
Corporate asset-backed securities |  |
Summary of amortized cost, estimated fair value and related unrealized gains and losses on securities available for sale |  |
Amortized Cost | 29,877 | 33,902
Gross Unrealized Gains | 0 | 133
Gross Unrealized Losses | 1,060 | 127
Estimated Fair Value | $ 28,817 | $ 33,908

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