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Supplemental Cash Flow Information (Tables)
 6 Months Ended
Jun. 30, 2019
SUPPLEMENTAL CASH FLOW INFORMATION  
Schedule of Changes in Working Capital

Changes in working capital for the six months period ended June 30, 2019 and 2018 are as follows:

 

   June 30, 2019   June 30, 2018 
Decrease in accounts receivables   27    95 
Decrease (increase) in prepaid expenses   (1)   (9)
(Decrease) increase in trade payables and accrued liabilities   (23)   65 
Total changes in working capital   3    151