DEBT - Carrying Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
DEBT
Principal Loan Balance	$ 80,000	$ 80,000
Unamortized debt discount and issuance cost	(1,698)	(1,927)
Cumulative accretion of exit fee	1,498	856
Long-term debt, net	$ 79,800	$ 78,929

Face (par) amount of debt instrument at time of issuance.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant