Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

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Stockholders' Equity (Details) (USD $)
3 Months Ended 81 Months Ended
Oct. 31, 2014
Oct. 31, 2013
Oct. 31, 2014
Stockholders' Equity      
Stockholders' equity at beginning of period $ 38,068,058 $ 4,739,124  
Net loss (4,061,116) (2,051,486) (29,424,148)
Stock-based compensation 611,240 70,410  
Common stock issued for services   150,000  
Exercise of common stock warrants   1,178,398  
Public offering on September 17, 2013, net of issuance costs of $836,360   11,111,640  
Stockholders' equity at end of period 34,618,182 15,198,086 34,618,182
Issuance costs   $ 836,360