Marketable Equity Securities (Details Narrative) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	May 19, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Unrealized loss on marketable equity securities		$ (148,000)	$ 484,000	$ (270,000)	$ (251,000)
Sale of Vox Mining Corp., shares	137,255
Sale of Vox Mining Corp., amount	$ 294,000
Vendetta Mining Corp. [Member]
Sale of Vox Mining Corp., shares				1,010,000	2,000,000
Sale of Vox Mining Corp., amount				$ 51,000	$ 76,000
(Loss) gain on sale				$ 2,000	$ 25,000
TNR Gold Corp.[Member]
Sale of Vox Mining Corp., shares		143,000		430,000
Sale of Vox Mining Corp., amount		$ 10,000		$ 28,000
(Loss) gain on sale		$ 6,000		$ 19,000
Vox Royalty Corp. [Member]
Sale of Vox Mining Corp., shares				3,200
Sale of Vox Mining Corp., amount	$ 294,000			$ 9,000
(Loss) gain on sale				$ 2,000