Amount of capitalized acquisition cost incurred during period and excluded from amortization for oil- and gas-producing activities accounted for under full cost method. Excludes exploration and development costs and capitalized interest.

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Mineral Properties - Mt. Todd, Northern Territory, Australia (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2024	Mar. 31, 2006	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Mineral Properties, Net			$ 1,070		$ 1,070		$ 920
Capitalization of mine development costs					150	$ 1,028
Mt Todd, Australia
Property, Plant and Equipment [Line Items]
Mineral Properties, Net			1,070		1,070		$ 920
Acquisition Costs, Period Cost		$ 2,146
Capitalization of mine development costs			$ 0	$ 524	$ 150	$ 1,028
Mineral Property Costs Derecognized	$ 3,091