Annual report pursuant to Section 13 and 15(d)

Asset Retirement Obligation (Details)

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Asset Retirement Obligation (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Asset Retirement Obligation Disclosure [Abstract]        
Decommissioning costs incurred $ 939,000   $ 939,000  
Estimated segment ARO liability 628,000   628,000  
Loss on settlement of asset retirement obligation 311,000 $ 0 310,941 $ 0
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]        
Beginning asset retirement obligation   7,956,343 9,170,493  
Liabilities assumed   0 0  
ARO accretion expense   443,969 499,562  
Liabilities settled   0 (628,300)  
Revision in cash flow estimates   (356,112) (1,085,412)  
Ending asset retirement obligation $ 7,956,343 $ 8,044,200 $ 7,956,343 $ 9,170,493