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v3.23.2

Fair Value (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Short-term Investments | $ 2,077 | $ 3,951
Marketable equity securities at fair value | 1,051 | 949
Kinross Call Option | 8 | 0
Level 1 [Member] |  |
Short-term Investments | 2,077 | 3,951
Marketable equity securities at fair value | 1,051 | 949
Kinross Call Option | 8 |
Level 2 [Member] |  |
Short-term Investments | 0 | 0
Marketable equity securities at fair value | 0 | 0
Kinross Call Option | 0 |
Level 3 [Member] |  |
Short-term Investments | 0 | 0
Marketable equity securities at fair value | 0 | $ 0
Kinross Call Option | $ 0 |

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