Investment in Marketable Securities, Net (Details Narrative) - USD ($)	6 Months Ended
Dec. 31, 2020	Jun. 30, 2020
Investment marketable securities, continuous unrealized loss position, 12 months or longer, aggregate loss	$ 3,876,000	$ 5,015,000
Comstock Mining, Inc [Member]
Investment marketable securities, percentage	55.00%	59.00%
Number of shares issued during period, shares	19,282
Investment marketable securities, continuous unrealized loss position, 12 months or longer, aggregate loss	$ 3,840,000	$ 4,928,000

Number of new stock issued during the period.

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-Name Accounting Standards Codification
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