SCHEDULE OF DEPRECIATION AND AMORTIZATION EXPENSE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]
Total depreciation and amortization expense	$ 646	$ 788	$ 2,083	$ 2,337
General and Administrative Expense [Member]
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]
Total depreciation and amortization expense	71	402	667	1,202
Research and Development Expense [Member]
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]
Total depreciation and amortization expense	$ 575	$ 386	$ 1,416	$ 1,135