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Asset Retirement Obligations (Details Textual) - USD ($)
12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Asset Retirement Obligations (Textual)    
Changes to the asset retirement obligation $ 624,354 $ 647,631
Fair value of liability $ 493,467 $ 493,411
Risk free rate 3.74%  
Inflation rate 2.00%  
Term of settlement of the obligation 25 years