COMMITMENTS AND CONTINGENCIES (Leases) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Right-of-use asset	$ 6,885		$ 6,885		$ 7,430
Accrued rent	(472)		(472)		(259)
Right-of-use asset, net	6,413		6,413		7,171
Lease liability	$ 6,885		$ 6,885		$ 7,430
Weighted average discount rate	4.70%		4.70%		4.70%
Weighted average remaining years of lease term	6 years 10 months 24 days		6 years 10 months 24 days		7 years 8 months 12 days
Income Statement Related Disclosures [Abstract]
Lease expense	$ 280	$ 280	$ 839	$ 839
Sublease income	(29)	(34)	(250)	(303)
Lease expense, net	251	246	589	536
Net cash provided by (used in) operating activities	$ (236)	$ (223)	$ (545)	$ (456)