Schedule of Net Gains (losses) on Marketable Securities Comprising of Realized and Unrealized Gains (Losses) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Realized (loss) gain on marketable securities, net	$ 503,000	$ 127,000	$ (1,019,000)	$ 1,707,000
Realized loss on marketable securities related to Comstock				(2,581,000)
Unrealized gain (loss) on marketable securities, net	363,000	779,000	2,459,000	(2,739,000)
Net gain (loss) on marketable securities	$ 866,000	$ 906,000	$ 1,440,000	$ (3,613,000)