OTHER INVESTMENTS, NET (Details) - USD ($)	Mar. 31, 2016	Jun. 30, 2015
Other Investment [Line Items]
Other investments, net	$ 1,155,000	$ 15,082,000
Preferred stock - Comstock, at cost [Member]
Other Investment [Line Items]
Other investments, net	0	13,231,000
Private equity hedge fund, at cost [Member]
Other Investment [Line Items]
Other investments, net	916,000	1,250,000
Other preferred stock, at cost [Member]
Other Investment [Line Items]
Other investments, net	239,000	497,000
Warrants - at fair value [Member]
Other Investment [Line Items]
Other investments, net	$ 0	$ 104,000