SCHEDULE OF SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Total net revenues	$ 2,266		$ 1,326		$ 3,199	$ 2,791
Total net loss	(12,677)	$ (13,040)	(22,792)	$ (25,573)	(25,717)	(48,365)
Regenerative Medicine [Member]
Segment Reporting Information [Line Items]
Total net revenues	944		504		1,372	801
Total net loss	(12,567)		(22,572)		(25,270)	(47,781)
Contract Services [Member]
Segment Reporting Information [Line Items]
Total net revenues	1,322		822		1,827	1,990
Total net loss	$ (110)		$ (220)		$ (447)	$ (584)