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INVESTMENT SECURITIES - Composition of Our Held to Maturity Portfolio by Credit Rating (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | $ 89,942 | $ 91,229
Fair Value | 70,270 | 73,262
AAA |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 0 | 0
Fair Value | 0 | 0
AA |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 0 | 0
Fair Value | 0 | 0
A |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 500 | 600
Fair Value | 466 | 565
U.S. government agency |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 89,442 | 90,629
Fair Value | $ 69,804 | $ 72,697

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