OTHER LONG-TERM ASSETS (Details) - USD ($) $ in Thousands	1 Months Ended
	Aug. 31, 2018	Mar. 31, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Investment, net		$ 1,579	$ 1,579
Operating lease right-of-use assets		586	735
Prepaid asset and deposits		2,275	2,456
Other		697	698
Total other long-term assets		5,137	$ 5,468
Credit loss allowance		$ 1,900
NES Therapeutic, Inc.
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Convertible notes receivable	$ 3,000
Summary of Investment Holdings [Line Items]
Convertible notes receivable	3,000
Payment for convertible notes receivable	$ 3,000
Convertible notes receivable, interest rate	10.00%