OTHER INVESTMENTS, NET (Details Textual) (USD $)	1 Months Ended	12 Months Ended			12 Months Ended			1 Months Ended
	Oct. 20, 2010	Jun. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Warrant [Member]	Jun. 30, 2012 Warrant [Member]	Jul. 31, 2013 Series A-1 Preferred Stock [Member] Chairman And President [Member]	Oct. 20, 2010 Series A-1 Preferred Stock [Member] Comstock Mining, Inc [Member]	Oct. 20, 2010 Series B Preferred Stock [Member]
Other Investment [Line Items]
Preferred stock, par value (in dollars per share)			$ 0.01	$ 0.01				$ 1,000	$ 1,000
Long-term Debt, Gross									$ 1,809,000
Unrealized Gain (Loss) on Investments		11,422,000
Convertible Preferred Stock, Shares Issued upon Conversion	1,536						7,681
Convertible Preferred Stock Conversion Price Per Share	$ 0.6510
Other investments, net			15,280,000	15,661,000					35,700,000
Preferred Stock Shares Received Upon Conversion Of Debt								13,231
Preferred Stock, Dividend Rate, Percentage								7.50%
Preferred Stock Value Received Upon Conversion Of Debt							7,681,000	13,231,000
Available-for-sale Debt Securities, Amortized Cost Basis					400,000	400,000
Available-for-sale Securities, Total					6,000	282,000
Available-for-sale Securities, Gross Unrealized Loss, Total					$ 276,000	$ 467,000