SCHEDULE OF EARNINGS PER SHARE, BASIC AND DILUTED (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net loss		$ (17,410)	$ (13,040)
Less: Gain from change in fair value of warrant liabilities		(755)
Net loss, available to common stockholders		$ (18,165)	$ (13,040)
Basic weighted average number of common shares (1)	[1]	76,158,275	33,019,994
Incremental shares from assumed exercise of warrants		237,803
Diluted weighted average number of common shares		76,396,078	33,019,994

[1] In December 2020 and January 2021, the Company sold pre-funded warrants to purchase up to 5,238,043 and 2,420,910 shares of common stock, respectively. The shares of common stock associated with the pre-funded warrants are considered outstanding for the purposes of computing earnings per share prior to exercise because the shares may be issued for little or no consideration, are fully vested, and are exercisable after the original issuance date. The pre-funded warrants sold in December 2020 and January 2021 were exercised during the period and included in the denominator for the period of time the warrants were outstanding.