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Mineral Properties (Details 1) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Extractive Industries [Abstract] |  |
Geologic and field expenses | $ 326 | $ 1,726
Administrative | 87 | 81
Total exploration expense | $ 413 | $ 1,807

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