LEASES - Summary of Lease Cost and Other Operating Lease Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)
Lease Cost
Operating lease cost	$ 767
Short-term lease cost	769
Variable lease cost	44
Total lease cost	1,580
Other Operating Lease Information
Cash paid for amounts included in the measurement of lease liability	$ 432
Weighted-average remaining lease term	7 years 6 months
Weighted-average discount rate	5.40%