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Marketable Equity Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Marketable equity securities at fair value	$ 357	$ 1,322
Kinross Gold Corp.
Marketable equity securities at fair value	0	$ 927
Shares		100,000
Vendetta Mining Corp. [Member]
Marketable equity securities at fair value	$ 56	$ 81
Shares	7,750,000	7,750,000
Vox Royalty Corp. [Member]
Marketable equity securities at fair value	$ 301	$ 314
Shares	70,000	134,055

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