v3.21.2
REVENUE (Tables)
6 Months Ended
Jun. 30, 2021
Revenue from Contract with Customer [Abstract]  
Information about disaggregated revenue and timing of revenue
                    
   Three Months Ended June 30,   Six Months Ended June 30, 
   2021   2020   2021   2020 
Primary geographic markets                    
North America  $   $   $   $62 
Asia Pacific           400     
Total  $   $   $400   $62 
                     
Timing of revenue recognition                    
Products and services transferred at a point in time  $   $   $400   $62 
Products and services transferred over time                
Total  $   $   $400   $62