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Asset Retirement Obligations (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Balance $ 1,145,052us-gaap_AssetRetirementObligation $ 1,087,140us-gaap_AssetRetirementObligation  
Accretion expense 51,466us-gaap_AssetRetirementObligationAccretionExpense 57,912us-gaap_AssetRetirementObligationAccretionExpense 161,298us-gaap_AssetRetirementObligationAccretionExpense
Balance $ 1,196,518us-gaap_AssetRetirementObligation $ 1,145,052us-gaap_AssetRetirementObligation $ 1,087,140us-gaap_AssetRetirementObligation