OPERATING LEASE - Narrative (Details) $ in Thousands		12 Months Ended
	Mar. 13, 2019 USD ($) ft²	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Operating Lease
Operating Lease, right of use assets, current		$ 338	$ 0
Operating lease right-of-use assets		0	1,583
Operating lease, right-of-use liability		349	$ 1,610
Lien on marketable securities to secure lease agreements		$ 600
Original Space | Bridgewater, New Jersey
Operating Lease
Facility space leased | ft²	10,000
Operating lease right-of-use assets	$ 700
Operating lease, right-of-use liability	$ 700
Additional Space | Bridgewater, New Jersey
Operating Lease
Facility space leased | ft²	4,639
Operating lease right-of-use assets	$ 300
Operating lease, right-of-use liability	$ 300
Vehicles lease expenses
Operating Lease
Operating lease terms		3 years
Vehicles lease prepaid period		3 months
Right of use assets transferred		$ 500
Right of use liabilities transferred		$ 500