INVESTMENT SECURITIES - Allowance for credit losses to HTM securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Allowance for credit losses:
Beginning balance	$ 71
Total ending allowance balance	71
Corporate bonds
Allowance for credit losses:
Beginning balance	71	$ 71
Provision for credit losses	0	0
Securities charged-off (recoveries)	0	0
Total ending allowance balance	71	71
Mortgage-Backed Securities, Issued by Private Enterprises
Allowance for credit losses:
Beginning balance	0	0
Provision for credit losses	0	0
Securities charged-off (recoveries)	0	0
Total ending allowance balance	$ 0	$ 0