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Asset Retirement Obligations (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Asset Retirement Obligation [Roll Forward]    
Obligation for lease disposal cost, balance at beginning of period $ 566,369us-gaap_AssetRetirementObligation $ 523,238us-gaap_AssetRetirementObligation
Obligation for lease disposal cost, decrease in lease disposal costs (162,426)us-gaap_AssetRetirementObligationPeriodIncreaseDecrease  
Obligation for lease disposal cost, accretion expense / amortization expense 46,687us-gaap_AssetRetirementObligationAccretionExpense 43,131us-gaap_AssetRetirementObligationAccretionExpense
Obligation for lease disposal cost, balance at end of period 450,630us-gaap_AssetRetirementObligation 566,369us-gaap_AssetRetirementObligation
Capitalized lease disposal cost, balance at beginning of period 90,199us-gaap_CapitalizedCostsAssetRetirementCosts 102,499us-gaap_CapitalizedCostsAssetRetirementCosts
Capitalized lease disposal cost, decrease in lease disposal costs (77,899)us-gaap_CostsIncurredAssetRetirementObligationIncurred  
Capitalized lease disposal cost, accretion expense / amortization expense (12,300)us-gaap_AccretionExpenseIncludingAssetRetirementObligations (12,300)us-gaap_AccretionExpenseIncludingAssetRetirementObligations
Capitalized lease disposal cost, balance at end of period $ 0us-gaap_CapitalizedCostsAssetRetirementCosts $ 90,199us-gaap_CapitalizedCostsAssetRetirementCosts