OTHER INVESTMENTS, NET (Details) (USD $)	Jun. 30, 2012	Jun. 30, 2011
Other investments, net	$ 15,661,000	$ 17,285,000
Preferred Stock - Comstock At Cost [Member]
Other investments, net	13,231,000	13,231,000
Private Equity Hedge Fund At Cost [Member]
Other investments, net	1,879,000	2,736,000
Corporate Debt and Equity Instruments At Cost [Member]
Other investments, net	269,000	569,000
Warrant [Member]
Other investments, net	$ 282,000	$ 749,000