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Schedule of Company's Deferred Tax Asset (Liability) (Details) - United States - USD ($)
Jun. 30, 2015
Jun. 30, 2014
Operating Loss Carryforwards [Line Items]    
Mineral properties $ 3,132,277 $ 2,374,033
Asset Retirement obligation 440,129 438,963
Marketable securities 18,766 1,377,000
Stock options 127,768  
Net operating losses 3,676,333 2,836,636
Gross deferred tax assets 7,395,273 7,026,632
Valuation allowance $ (7,395,273) $ (7,026,632)