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INVESTMENTS (Tables) | 9 Months Ended
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Sep. 30, 2019
INVESTMENTS |
Summary of investment portfolio | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As at | ​ | Additions/ | ​ | Net gain | ​ | Disposals/ | ​ | Unrealized | ​ | Fair value
​ | ​ | December 31, | ​ | transfers during | ​ | (loss) on | ​ | transfers during | ​ | gain (loss) on | ​ | September 30,
​ |  | 2018 |  | period |  | securities sold |  | period |  | securities held |  | 2019
Marketable equity securities | ​ | $ | 2,718 | ​ | $ | 2,314 | ​ | $ | 3,375 | ​ | $ | (5,653) | ​ | $ | 470 | ​ | $ | 3,224
Warrants | ​ |  | 413 | ​ |  | — | ​ |  | — | ​ |  | (1,540) | ​ |  | 1,127 | ​ |  | —
Investments | ​ | $ | 3,131 | ​ | $ | 2,314 | ​ | $ | 3,375 | ​ | $ | (7,193) | ​ | $ | 1,597 | ​ | $ | 3,224
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As at | ​ | Additions/ | ​ | Net gain | ​ | Disposals/ | ​ | Unrealized | ​ | Fair value
​ | ​ | December 31, | ​ | transfers during | ​ | (loss) on | ​ | transfers during | ​ | gain (loss) on | ​ | September 30,
​ |  | 2017 |  | period |  | securities sold |  | period |  | securities held |  | 2018
Marketable equity securities | ​ | $ | 6,404 | ​ | $ | 1,882 | ​ | $ | (767) | ​ | $ | (2,895) | ​ | $ | (1,795) | ​ | $ | 2,829
Warrants | ​ |  | 1,567 | ​ | ​ | 201 | ​ | ​ | — | ​ | ​ | (704) | ​ | ​ | (731) | ​ | ​ | 333
Investments | ​ | $ | 7,971 | ​ | $ | 2,083 | ​ | $ | (767) | ​ | $ | (3,599) | ​ | $ | (2,526) | ​ | $ | 3,162

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- Definition A tabular disclosure of the investment portfolio, which consists of the marketable securities and warrants. + References No definition available. + Details
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- References No definition available. + Details
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