Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies and Basis of Presentation - Schedule of Common Stock Excluded from Diluted Net Loss Per Share (Details)

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Summary of Significant Accounting Policies and Basis of Presentation - Schedule of Common Stock Excluded from Diluted Net Loss Per Share (Details) - shares
9 Months Ended
Jul. 31, 2017
Jul. 31, 2016
Number of common stock excluded from diluted net loss per share 8,515,424 7,225,278
Warrants [Member]    
Number of common stock excluded from diluted net loss per share 3,094,173 3,110,575
Stock Options [Member]    
Number of common stock excluded from diluted net loss per share 3,893,558 3,351,794
Restricted Stock Units (RSUs) [Member]    
Number of common stock excluded from diluted net loss per share 1,527,693 762,909