INVESTMENT SECURITIES - Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Available-for-sale securities, Amortized cost
One year or less	$ 1,700	$ 1,700
After one through five years	3,870	10,676
After five through ten years	2,583	14,909
After ten years	27,436	52,416
Total	35,589	79,701
Available-for-sale securities, Fair value
One year or less	1,693	1,643
After one through five years	3,965	10,226
After five through ten years	2,606	13,673
After ten years	23,932	44,998
Total	32,196	70,540
Held-to-maturity securities, Amortized cost
After one through five years	2,450	2,334
After five through ten years	7,000	7,124
After ten years	4,000	4,003
Total	13,450	13,461
Held-to-maturity securities, Fair value
After one through five years	2,277	2,095
After five through ten years	6,051	5,899
After ten years	3,371	3,233
Total	$ 11,699	$ 11,227