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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
12 Months Ended
Dec. 31, 2020
SUPPLEMENTAL CASH FLOW INFORMATION [Abstract]  
Supplemental Cash Flow Information
Non-cash investing and financing activities for the years ended December 31, 2020, 2019 and 2018 are presented below:

  
2020
  
2019
  
2018
 
Unpaid acquisition of PPE
  
304,531
   
1,812,174
   
644,507
 
Principal payment of financial lease (1)
  
190,969
   
203,173
   
213,551
 
Capitalization of finance costs
  
-
   
607,452
   
-
 

(1) Cancelled through compensation with trade receivables with the creditor. See Note 13.