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INVESTMENT SECURITIES - Composition of Available For Sale Portfolios by Credit Rating (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 176,564 | $ 179,744
Fair Value | 151,672 | 155,743
U.S. government agency |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 97,305 | 98,977
Fair Value | 78,026 | 81,351
AAA |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 12,386 | 9,695
Fair Value | 12,256 | 9,508
AA |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 19,709 | 23,913
Fair Value | 19,613 | 23,709
A |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 8,200 | 8,200
Fair Value | 7,465 | 7,292
BBB |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 38,964 | 38,959
Fair Value | 34,312 | 33,883
Non-rated |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 0 | 0
Fair Value | $ 0 | $ 0

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