INVESTMENT IN MARKETABLE SECURITIES (Details 1) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Debt and Equity Securities, FV-NI [Line Items]
Realized gain on marketable securities	$ (169,000)	$ 534,000	$ 353,000	$ 415,000
Unrealized (loss) gain on marketable securities	850,000	102,000	(1,352,000)	775,000
Unrealized loss on marketable securities related to Comstock	280,000	(744,000)	(182,000)	(3,498,000)
Net loss on marketable securities	$ 961,000	$ (108,000)	$ (1,181,000)	$ (2,308,000)