LEASES - Quantitative Disclosure of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Lease cost:
Operating lease cost	$ 151	$ 151	$ 303	$ 303
Short-term lease cost	183	169	332	326
Sublease income	(153)	(146)	(295)	(320)
Total lease cost, net	$ 181	$ 174	$ 340	$ 309
Other information as of:
Weighted-average remaining lease term	4 years 4 months 24 days		4 years 4 months 24 days		4 years 10 months 24 days
Weighted-average discount rate	7.25%		7.25%		7.25%