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Supplemental Cash Flow Information (Tables)
 6 Months Ended
Jun. 30, 2018
SUPPLEMENTAL CASH FLOW INFORMATION  
Schedule of Changes in Working Capital

Changes in working capital for the six months period ended June 30, 2018 and 2017 are as follows:

 

    June 30, 2018     June 30, 2017  
Decrease (increase) in accounts receivables     95       (126 )
(Increase) in prepaid expenses     (9 )     (159 )
Increase in trade payables and accrued liabilities     65       1,504  
Total changes in working capital     151       1,219