DEBT SECURITIES - Allowance for credit losses to HTM securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Allowance for credit losses:
Beginning balance	$ 71
Total ending allowance balance	71	$ 71
Corporate bonds
Allowance for credit losses:
Beginning balance	71	0
Provision for credit losses	0	0
Securities charged-off (recoveries)	0	0
Total ending allowance balance	71	71
Corporate bonds | Impact of ASU 2016-13 adoption
Allowance for credit losses:
Beginning balance	0	71
Total ending allowance balance		0
Corporate CMO
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
Corporate CMO | Impact of ASU 2016-13 adoption
Allowance for credit losses:
Beginning balance	$ 0	0
Total ending allowance balance		$ 0