Post-effective amendment to a registration statement that is not immediately effective upon filing

NET LOSS PER SHARE (Details) - Schedule of antidilutive securities excluded from computation of earnings per share

v3.21.1
NET LOSS PER SHARE (Details) - Schedule of antidilutive securities excluded from computation of earnings per share - shares
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount 20,817,025 1,195,024 20,079,536 1,259,141
Common stock warrants        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount 17,850,460 17,963,591 63,597
SAMA earnout shares        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount 570,211 1,140,423
Stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount 948,322 1,195,024 896,888 1,195,544
Unvested restricted share units        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount 1,448,032 78,634