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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2019
SUPPLEMENTAL CASH FLOW INFORMATION |
Schedule of Changes in Working Capital | Changes in working capital for the year ended December 31, 2019 and 2018 are as follows: (All amounts in table are expressed in thousands of Canadian dollars)
|  | December 31, 2019 |  |  | December 31, 2018 |  |  | December 31, 2017 |
(Increase) decrease in accounts receivables |  |  | (126 | ) |  |  | 84 |  |  |  | (162 | )
Decrease in prepaid expenses |  |  | 3 |  |  |  | 19 |  |  |  | 46 |
Increase (decrease) in trade payables and accrued liabilities |  |  | 134 |  |  |  | (82 | ) |  |  | 21 |
Total changes in working capital |  |  | 11 |  |  |  | 21 |  |  |  | (95 | )

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