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Commitments (Details 5) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016
Total share based compensation | $ 5,517,004 | $ 4,135,570 | $ 5,062,267
General and administrative [Member] |  |  |
Total share based compensation | 2,699,557 | 2,017,199 | 3,208,220
Research and development [Member] |  |  |
Total share based compensation | $ 2,817,447 | $ 2,118,371 | $ 1,854,047

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