LEASES - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Total operating lease cost	$ 570	$ 1,339
Finance lease cost, amortization of ROU assets	71	32
Finance lease cost, interest expense	190	56
Variable lease cost	162	680
Total lease cost	$ 993	$ 2,107