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Prepaid expenses (Tables)
 12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Detailed Information about Prepaid Expenses
 
  
2020
 
  
2019
 
Prepaid taxes
  
$
10,022
 
  
$
26,164
 
Prepaid commissions
  
 
3,908
 
  
 
4,298
 
Prepaid insurance
  
 
5,385
 
  
 
1,231
 
Prepaid to supplier
  
 
17,224
 
  
 
35,084
 
 
  
 
 
 
  
 
 
 
 
  
$
36,539
 
  
$
66,777
 
 
  
 
 
 
  
 
 
 
   
Current
  
 
30,473
 
  
 
49,034
 
Non-current
  
 
6,066
 
  
 
17,743
 
 
  
 
 
 
  
 
 
 
 
  
$
36,539
 
  
$
66,777