OTHER INVESTMENTS, NET (Details Textual) (USD $)	1 Months Ended	12 Months Ended
	Oct. 20, 2010	Jun. 30, 2011	Jun. 30, 2012
Preferred stock, par value (in dollars per share)		$ 0.01	$ 0.01
Long-term Debt, Gross	$ 1,809,000
Unrealized Gain (Loss) on Investments		11,422,000
Convertible Preferred Stock, Shares Issued upon Conversion	1,536
Convertible Preferred Stock Conversion Price Per Share	$ 0.6510
Other investments, net		17,285,000	15,661,000
Series A Preferred Stock [Member] | Comstock Mining, Inc [Member]
Preferred Stock Shares Received Upon Conversion Of Debt	13,231
Preferred stock, par value (in dollars per share)	$ 1,000
Preferred Stock, Dividend Rate, Percentage	7.50%
Preferred Stock Value Received Upon Conversion Of Debt	13,231,000
Series A Preferred Stock [Member] | Intergroup [Member]
Preferred Stock Value Received Upon Conversion Of Debt		7,681,000
Convertible Preferred Stock, Shares Issued upon Conversion		7,681
Series B Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 1,000
Other investments, net	35,700,000
Warrant [Member]
Available-for-sale Debt Securities, Amortized Cost Basis		400,000	400,000
Available-for-sale Securities, Fair Value Disclosure		749,000	282,000
Available-for-sale Securities, Gross Unrealized Gains		$ 143,000	$ 467,000