REGULATORY MATTERS - Narrative (Details) - USD ($) $ in Millions	1 Months Ended
	Mar. 31, 2020	Dec. 31, 2023	Dec. 31, 2022
Banking and Thrift, Interest [Abstract]
Retained earnings, unappropriated		$ 149.3
Transition relief allowed under the interim final rule (in years)	5 years
Percentage of capital conservation buffer for capital adequacy purposes (as a percent)		2.50%	2.50%