LEASES - Narrative (Details) - USD ($) $ in Thousands				1 Months Ended	12 Months Ended
	Sep. 27, 2021	Aug. 03, 2020	Apr. 09, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Cash paid for operating lease liabilities					$ 200	$ 600
Weighted-average remaining lease term					12 months
Weighted-average discount rate					13.00%
Gain on lease termination					$ 0	3,582
Monetary damages	$ 1,000		$ 1,100
Hughes Center Lease Settlement
Lessee, Lease, Description [Line Items]
Accrual for legal settlement						$ 2,600	$ 2,300	$ 300
Payments for legal settlements		$ 600
Office Space
Lessee, Lease, Description [Line Items]
Gain on lease termination		$ 2,000		$ 1,500	$ 3,600