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Marketable Equity Securities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Marketable equity securities at fair value | $ 1,620 | $ 1,039
Kinross Gold Corp |  |
Shares | 100,000 |
Marketable equity securities at fair value | $ 734 |
Vendetta Mining Corp. |  |
Shares | 11,550,000 |
Marketable equity securities at fair value | $ 544 |
Vox Royalty Corp. |  |
Shares | 137,255 |
Marketable equity securities at fair value | $ 323 |
TNR Gold Corp. |  |
Shares | 430,000 |
Marketable equity securities at fair value | $ 19 |

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