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Geographic Information and Major Customer and Product Data (Tables)
12 Months Ended
Dec. 31, 2019
Segment Reporting [Abstract]  
Schedule of revenues within geographic areas

   Year Ended December 31, 
   2019   2018   2017 
Revenues based on customer's location:            
Israel  $2   $   $ 
United States   2,003    3,558    4,598 
Europe   2,832    2,807    3,094 
Asia-Pacific   36    22    61 
Latin America       58     
Africa       100     
                
Total revenues  $4,873   $6,545   $7,753 
Schedule of long-lived assets by geographic region
  December 31, 
   2019   2018 
Long-lived assets by geographic region:          
Israel  $179   $206 
United States   244    330 
Germany   78    90 
           
   $501   $626 

 

  (*) Long-lived assets are comprised of property and equipment, net.
Schedule of major customer data as a percentage of total revenues

   Year Ended December 31, 
   2019   2018   2017 
Customer A   15.0%   38.0%   35.2%