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OTHER INVESTMENTS, NET (Details Textual) - USD ($)
Sep. 30, 2015
Jun. 30, 2015
Other Investment [Line Items]    
Other Investments, Total $ 1,778,000 $ 15,082,000
Comstock Mining, Inc [Member]    
Other Investment [Line Items]    
Other Investments, Total   $ 13,231,000
Preferred Stock, Shares Outstanding   13,231