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Commitments (Details 5) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Total share based compensation $ 1,225,696 $ 968,893 $ 2,347,681 $ 1,858,160
General and administrative [Member]        
Total share based compensation 625,679 450,128 1,197,041 877,711
Research and development [Member]        
Total share based compensation $ 600,017 $ 518,765 $ 1,150,640 $ 980,449