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Deferred Revenue (Tables)
12 Months Ended
Dec. 31, 2019
Deferred Revenue Disclosure [Abstract]  
Schedule of deferred revenue
   As of December 31, 
   2019   2018 
Deferred Revenue, Current        
Maintenance agreements  $633   $2 
Service agreements   279    232 
Total Deferred Revenue, Current   912    234 
           
Total Deferred Revenue  $912   $234