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Marketable Equity Securities (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Marketable equity securities at fair value	$ 1,281,000	$ 1,620,000
Kinross Gold Corp [Member]
Marketable equity securities at fair value	$ 635,000	$ 734,000
Shares	100,000	100,000
Vendetta Mining Corp. [Member]
Marketable equity securities at fair value	$ 383,000	$ 544,000
Shares	10,540,000	11,550,000
Vox Royalty Corp. [Member]
Marketable equity securities at fair value	$ 263,000	$ 323,000
Shares	134,055	137,255
TNR Gold Corp.[Member]
Marketable equity securities at fair value	$ 0	$ 19,000
Shares		430,000

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Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

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