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Marketable Equity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Marketable equity securities at fair value	$ 949	$ 1,307
Kinross Gold Corp
Marketable equity securities at fair value	$ 409	$ 581
Shares	100,000	100,000
Vox Royalty Corp. [Member]
Marketable equity securities at fair value	$ 311	$ 370
Shares	134,055	134,055
Vendetta Mining Corp. [Member]
Marketable equity securities at fair value	$ 229	$ 356
Shares	7,750,000	9,000,000
Highland Silver Corp [Member]
Marketable equity securities at fair value	$ 0	$ 0
Shares	200,000	0

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