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Asset Retirement Obligation (Details) - USD ($)
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Asset Retirement Obligation [Line Items]      
Beginning balance $ 947,849 $ 866,560  
Accretion of discount 88,915 81,289 $ 74,318
Gain on change in ARO estimate (456,284) 81,289  
Ending balance $ 580,480 $ 947,849 $ 866,560