SEGMENTS AND GEOGRAPHIC INFORMATION (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	1
REVENUES	$ 3,160	$ 735
Japan
Segment Reporting Information [Line Items]
REVENUES	2,716	476
China
Segment Reporting Information [Line Items]
REVENUES	406	87
Other
Segment Reporting Information [Line Items]
REVENUES	$ 38	$ 172