RESEARCH AND DEVELOPMENT, NET (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Research And Development Arrangement [Line Items]        
Research and development $ 12,222 $ 17,146 $ 12,222 $ 17,146
Research and Development Expense $ 3,618 $ 1,867 11,558 13,509
CIRM        
Research And Development Arrangement [Line Items]        
Less : Participation       (1,862)
Israeli Hospital Exemption regulatory pathway        
Research And Development Arrangement [Line Items]        
Less : Participation       (816)
Israel Innovation Authorities        
Research And Development Arrangement [Line Items]        
Less : Participation     (141) (885)
Other        
Research And Development Arrangement [Line Items]        
Less : Participation     $ (523) $ (74)