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Prepaid Expenses and Other Current Assets (Tables)
 12 Months Ended
Dec. 31, 2020
Prepaid Expenses and Other Current Assets [Abstract]  
Schedule of prepaid expense and other current assets
   As of December 31, 
   2020   2019 
         
Prepaid insurance  $255   $223 
Prepaid rent   11    4 
VAT receivable   433    211 
Advances   216    - 
Advances to suppliers   43    51 
Other   203    226 
Total prepaid expenses and other current assets  $1,161   $715