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SECURITIES - Securities Portfolio Presented by Contractual Maturity (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Securities Available for Sale, Amortized Cost [Abstract] |  |  |
Due in one year or less | $ 29,952 |  |
Due after one year through five years | 1,000 |  |
Five to ten years | 16,524 |  |
Beyond ten years | 46,462 |  |
Amortized Cost | 94,235 |  | $ 63,292
Securities Available for Sale, Fair Value [Abstract] |  |  |
Due in one year or less | 29,956 |  |
Due after one year through five years | 1,000 |  |
Five to ten years | 14,859 |  |
Beyond ten years | 46,730 |  |
Fair value | 92,709 |  | 61,419
Securities Held to Maturity, Amortized Cost [Abstract] |  |  |
Amortized Cost | 3,973 |  | 4,041
Securities Held to Maturity, Fair Value [Abstract] |  |  |
Fair value | 3,751 |  | 3,835
Debt Securities, Available-for-Sale and Held-to-Maturity, after Allowance for Credit Loss [Abstract] |  |  |
Amortized cost | 98,208 |  |
Fair value | 96,460 |  |
Proceeds from sales | 0 | $ 0 |
U.S. GSE residential mortgage-backed securities |  |  |
Securities Available for Sale, Amortized Cost [Abstract] |  |  |
Without single maturity date | 297 |  |
Amortized Cost | 297 |  | 309
Securities Available for Sale, Fair Value [Abstract] |  |  |
Without single maturity date | 164 |  |
Fair value | 164 |  | 201
Securities Held to Maturity, Amortized Cost [Abstract] |  |  |
Without single maturity date | 1,427 |  |
Securities Held to Maturity, Fair Value [Abstract] |  |  |
Without single maturity date | 1,321 |  |
Fair value | 1,321 |  | 1,384
U.S. GSE commercial mortgage-backed securities |  |  |
Securities Held to Maturity, Amortized Cost [Abstract] |  |  |
Without single maturity date | 2,546 |  |
Securities Held to Maturity, Fair Value [Abstract] |  |  |
Without single maturity date | 2,430 |  |
Fair value | $ 2,430 |  | $ 2,451

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