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Other Accounts Receivable and Prepaid Expenses (Tables)
 12 Months Ended
Dec. 31, 2020
Prepaid Expense and Other Assets [Abstract]  
Schedule of other accounts receivable and prepaid expenses
   December 31, 
   2020   2019 
         
Indirect taxes  $252   $620 
Prepaid expenses   1,135    790 
Others   50    126 
           
   $1,437   $1,536