COMMITMENTS AND CONTINGENCIES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 2,445	$ 2,306
Operating cash flows from finance leases	282	306
Financing cash flows from finance leases	766	680
Non-cash activities: right-of-use assets obtained in exchange for lease obligations:
Operating leases	1,707	3,100
Finance leases	$ 1,286	$ 0