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Asset Retirement Obligations (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Asset Retirement Obligation Disclosure [Abstract]      
Balance, beginning of year $ 1,085,000 $ 995,197 $ 995,197
Liabilities settled 0   (4,530)
Accretion expense 75,000 $ 75,333 94,333
Balance, end of year 1,160,000   1,085,000
Less current asset retirement obligations (445,900)   (425,200)
Long-term asset retirement obligations $ 714,100   $ 659,800