OTHER INVESTMENTS, NET (Details) (USD $)	Dec. 31, 2014	Jun. 30, 2014
Other Investment [Line Items]
Other investments, net	$ 15,811,000	$ 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	1,650,000	1,650,000
Corporate debt and equity instruments, at cost [Member]
Other Investment [Line Items]
Other investments, net	269,000	269,000
Other preferred stock, at cost [Member]
Other Investment [Line Items]
Other investments, net	480,000	480,000
Warrants - at fair value [Member]
Other Investment [Line Items]
Other investments, net	$ 181,000	$ 207,000