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Commitments And Contingencies (Details) - Mt Todd, Australia |  | 12 Months Ended
--- | --- | ---
Oct. 31, 2020 | Dec. 31, 2020
Loss Contingencies [Line Items] |  |
Percentage of ownership in project |  | 100.00%
Scenario, Plan | Jawoyn Association Aboriginal Corporation |  |
Loss Contingencies [Line Items] |  |
Percentage of ownership in project | 10.00% |
Percentage of royalty on gold |  | 1.00%
Scenario, Plan | Minimum | Jawoyn Association Aboriginal Corporation |  |
Loss Contingencies [Line Items] |  |
Gross Proceeds Royalty, Additional Contingent Gross Proceeds Royalty, Percent |  | 0.125%
Gross Proceeds Royalty, Including Contingent Additional Gross Proceeds Royalty, Percent |  | 1.125%
Scenario, Plan | Maximum | Jawoyn Association Aboriginal Corporation |  |
Loss Contingencies [Line Items] |  |
Gross Proceeds Royalty, Additional Contingent Gross Proceeds Royalty, Percent |  | 2.00%
Gross Proceeds Royalty, Including Contingent Additional Gross Proceeds Royalty, Percent |  | 3.00%

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- Definition Cash payment to affiliate as percentage of value of annual gold production from current mining leases. + References No definition available. + Details
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