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Marketable Securities (Tables) | 12 Months Ended
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Dec. 31, 2021
Marketable Securities |
Marketable Securities |
|  | Total |
Balance at December 31, 2019 |  | $ | 346 |
Additions upon acquisition of Eastmain (a) |  |  | 1,662 |
Additions |  |  | 102 |
Unrealized net gain |  |  | 565 |
Balance at December 31, 2020 |  | $ | 2,675 |
Additions |  |  | 110 |
Sale of marketable securities |  |  | (1,000 | )
Realized loss on disposition |  |  | (311 | )
Unrealized net loss |  |  | (869 | )
Balance at December 31, 2021 |  | $ | 605 |

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