CAPITAL REQUIREMENTS AND RESTRICTIONS ON RETAINED EARNINGS - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Capital Requirements and Restrictions On Retained Earnings [Abstract]
Amount available for dividends	$ 106.9
Description of regulatory requirements, capital adequacy purposes	Under the Basel III rule, the Company must hold a capital conservation buffer above the adequately capitalized risk-based capital ratios. The capital conservation buffer was phased in from 0.00% for 2015 to 2.50% by 2019. The capital conservation buffer for 2021 and 2020 was 2.50%. The net unrealized gain or loss on available-for-sale securities is not included in computing regulatory capital.