Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Details - Schedule of Accounts Payable and Accrued Liabilities (Details)

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Balance Sheet Details - Schedule of Accounts Payable and Accrued Liabilities (Details) - USD ($)
Jan. 31, 2019
Jul. 31, 2018
Balance Sheet Related Disclosures [Abstract]    
Research and development costs $ 2,726,710 $ 3,801,211
Professional services fees 1,466,329 770,853
Other 261,029 206,828
Accounts payable and accrued liabilities $ 4,454,068 $ 4,778,892