OTHER INVESTMENTS, NET (Details) - USD ($)	Jun. 30, 2015	Jun. 30, 2014
Other Investment [Line Items]
Other investments, net	$ 15,082,000	$ 15,837,000
Preferred stock - Comstock, at cost [Member]
Other Investment [Line Items]
Other investments, net	13,231,000	13,231,000
Private equity hedge fund, at cost [Member]
Other Investment [Line Items]
Other investments, net	1,250,000	1,650,000
Corporate debt and equity instruments, at cost [Member]
Other Investment [Line Items]
Other investments, net	0	269,000
Other preferred stock, at cost [Member]
Other Investment [Line Items]
Other investments, net	497,000	480,000
Warrants - at fair value [Member]
Other Investment [Line Items]
Other investments, net	$ 104,000	$ 207,000