Quarterly report pursuant to Section 13 or 15(d)

SEGMENTS AND GEOGRAPHIC INFORMATION (Details)

v3.21.1
SEGMENTS AND GEOGRAPHIC INFORMATION (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2021
USD ($)
segment
Mar. 31, 2020
USD ($)
Segment Reporting Information [Line Items]    
Number of operating segments | segment 1  
Revenues $ 608 $ 544
Japan    
Segment Reporting Information [Line Items]    
Revenues 494 501
China    
Segment Reporting Information [Line Items]    
Revenues 93 36
Other    
Segment Reporting Information [Line Items]    
Revenues $ 21 $ 7