Quarterly report pursuant to Section 13 or 15(d)

Cash and Cash Equivalents and Liquidity (Details Narrative)

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Cash and Cash Equivalents and Liquidity (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended 105 Months Ended
Apr. 30, 2017
Apr. 30, 2016
Apr. 30, 2017
Apr. 30, 2016
Apr. 30, 2017
Jul. 31, 2016
Jul. 31, 2015
Cash and Cash Equivalents [Abstract]              
Losses in all previous reporting periods from inception to date         $ 89,000,000    
Cash and cash equivalents $ 16,106,338 $ 24,018,782 $ 16,106,338 $ 24,018,782 $ 16,106,338 $ 28,746,224 $ 32,035,264
Net loss $ 4,560,972 $ 6,251,409 $ 15,551,867 $ 20,326,520