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INVESTMENTS (Tables) | 12 Months Ended
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Dec. 31, 2021
INVESTMENTS |
Summary of investment portfolio | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As at | ​ | Additions/ | ​ | ​ | ​ | Disposals/ | ​ | Unrealized | ​ | Fair value
​ | ​ | December 31, | ​ | transfers during | ​ | Net gain (loss) on | ​ | transfers during | ​ | gain on | ​ | December 31,
​ |  | 2020 |  | period |  | securities sold |  | year |  | securities held |  | 2021
Marketable equity securities | ​ | $ | — | ​ | $ | 1,616 | ​ | $ | — | ​ | $ | — | ​ | $ | 28 | ​ | $ | 1,644
Warrants | ​ |  | — | ​ |  | 162 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 162
Investments | ​ | $ | — | ​ | $ | 1,777 | ​ | $ | — | ​ | $ | — | ​ | $ | 28 | ​ | $ | 1,806
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As at | ​ | Additions/ | ​ | Net | ​ | Disposals/ | ​ | Unrealized | ​ | Fair value
​ | ​ | December 31, | ​ | transfers during | ​ | (loss) on | ​ | transfers during | ​ | (loss) on | ​ | December 31,
​ |  | 2019 |  | period |  | securities sold | ​ | year | ​ | securities held | ​ | 2020
Marketable equity securities | ​ | $ | 1,885 | ​ | $ | — | ​ | $ | (619) | ​ | $ | (1,266) | ​ | $ | — | ​ | $ | —

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- Definition Tabular disclosure of investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -URI http://asc.fasb.org/topic&trid=2197064 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -URI http://asc.fasb.org/topic&trid=75115024 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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- References No definition available. + Details
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