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Acquisition of Subsidiary (Tables)
12 Months Ended
Dec. 31, 2019
Business Combinations [Abstract]  
Schedule of change in the fair value of the contingent consideration

   Contingent
consideration
 
     
As of December 31, 2018   889 
Revaluation of contingent consideration   (629)
As of December 31, 2019   260 

 

   Contingent
consideration
 
     
As of December 31, 2017   1,001 
Revaluation of contingent consideration   (112)
As of December 31, 2018   889