INVESTMENT SECURITIES - Amortized Cost and Fair Value of Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Available for sale, Amortized Cost
Due within one year	$ 0
Due after one year through five years	2,755
Due after five years through ten years	974
Due after ten years	3,490
Amortized cost	7,219	$ 7,639
Available for sale, Fair Value
Due within one year	0
Due after one year through five years	2,573
Due after five years through ten years	906
Due after ten years	3,161
Total available for sale	6,640	7,095
Held to maturity, Amortized Cost
Due within one year	0
Due after one year through five years	1,429
Due after five years through ten years	0
Due after ten years	7,842
Amortized cost	9,271	9,292
Held to maturity, Fair Value
Due within one year	0
Due after one year through five years	1,451
Due after five years through ten years	0
Due after ten years	6,234
Total held to maturity	$ 7,685	$ 7,892