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Asset Retirement Obligations and Financial Reclamation Assurance (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Asset Retirement Obligations [Line Items]    
Balance, beginning of the period $ 978,453 $ 624,142
Accretion 45,059 0
Changes in cash flow estimates 245,029 354,311
Balance, end of the period $ 1,268,541 $ 978,453