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Other Accounts Receivable and Prepaid Expenses (Tables)
 12 Months Ended
Dec. 31, 2019
Prepaid Expense and Other Assets [Abstract]  
Schedule of other accounts receivable and prepaid expenses

 

   December 31, 
   2019   2018 
         
Indirect taxes  $620   $667 
Prepaid expenses and advances to suppliers   790    752 
Others   126    347 
           
   $1,536   $1,766