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INVESTMENTS (Tables) | 12 Months Ended
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Dec. 31, 2022
INVESTMENTS |
Summary of Investments balances | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | At December 31 |  | At December 31
(in thousands) | ​ | 2022 | ​ | 2021
​ | ​ | ​ | ​ | ​ | ​ | ​
Investments: |  | ​ |  |  | ​ |
Equity instruments |  | ​ |  |  | ​ |
Shares | ​ | $ | 8,022 | ​ | $ | 14,349
Warrants | ​ |  | 87 | ​ |  | 229
Uranium | ​ |  | 162,536 | ​ |  | 133,114
​ | ​ | $ | 170,645 | ​ | $ | 147,692
​ | ​ | ​ | ​ | ​ | ​ | ​
Investments-by balance sheet presentation: | ​ |  |  | ​ |  |
Current | ​ | $ | 8,022 | ​ | $ | 14,437
Long-term | ​ |  | 162,623 | ​ |  | 133,255
​ | ​ | $ | 170,645 | ​ | $ | 147,692
​ ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​
​ | ​ | Number of | ​ | Warrant
(in thousands except warrant amounts) | ​ | Warrants | ​ | Liability
​ | ​ | ​ | ​ | ​ | ​
Balance-December 31, 2021 |  | 32,500,000 | ​ | $ | 1,625
Change in fair value to (profit) and loss (note 21) |  | — | ​ |  | (1,625)
Balance-December 31, 2022 |  | 32,500,000 | ​ | $ | —
Summary of Investments continuity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Equity |  | Physical |  | ​ | ​
(in thousands) | ​ | Instruments | ​ | Uranium | ​ | Total
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance-January 1, 2021 | ​ | $ | 16,950 | ​ | $ | — | ​ | $ | 16,950
Purchase of investments | ​ |  | — | ​ |  | 91,674 | ​ |  | 91,674
Sale of investments | ​ |  | (12,826) | ​ |  | — | ​ |  | (12,826)
Fair value gain to profit and (loss) (note 21) | ​ |  | 10,454 | ​ |  | 41,440 | ​ |  | 51,894
Balance-December 31, 2021 | ​ | $ | 14,578 | ​ | $ | 133,114 | ​ | $ | 147,692
Change in fair value gain to profit and (loss) (note 21) | ​ |  | (6,469) | ​ |  | 29,422 | ​ |  | 22,953
Balance-December 31, 2022 | ​ | $ | 8,109 | ​ | $ | 162,536 | ​ | $ | 170,645
​

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