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Mineral Properties - Mt. Todd, Northern Territory, Australia (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Mar. 31, 2006
Sep. 30, 2024
Sep. 30, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]        
Mineral Properties, Net   $ 558 $ 558 $ 2,146
Capitalization of mine development costs     1,503  
Mt Todd, Australia        
Property, Plant and Equipment [Line Items]        
Mineral Properties, Net   558 558 $ 2,146
Acquisition Costs, Period Cost $ 2,146      
Capitalization of mine development costs   $ 475 1,503  
Mineral Property Costs Derecognized     $ 3,091