FAIR VALUES OF FINANCIAL INSTRUMENTS - Reconciliation of Beginning and Ending Balances of Recurring Fair Value Measurements using Significant Unobservable Level 3 Inputs (Details) - Recurring - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Available for Sale Securities
Balance at beginning of the period	$ 3,439	$ 5,491
Included in other comprehensive income	114	(493)
Purchases, issuances and settlements	0	4,100
Principal payments	(91)	(186)
Ending balance	$ 3,462	$ 8,912