Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

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Stockholders' Equity (Tables)
6 Months Ended
Jan. 31, 2019
Equity [Abstract]  
Schedule of Changes in Stockholders' Equity

A summary of the changes in stockholders’ equity for the six months ended January 31, 2019 and 2018 is presented below:

 

    January 31, 2019     January 31, 2018  
Stockholders’ equity at beginning of period   $ 22,924,206     $ 10,695,982  
Net loss     (15,890,643 )     (16,636,553 )
Stock-based compensation     2,304,108       2,981,509  
Common stock issued for services     445,611       843,250  
Modification of equity award     135,425       -  
Issuance of common stock through employee stock purchase plan     23,390       19,048  
Equity offerings, net of costs     14,141,895       7,886,913  
Accumulated other comprehensive income (loss)     61,857       23,865  
Exercise of common stock warrants     -       9,593,733  
Exercise of common stock options     566,135       157,928  
Inducement warrant issuance     -       2,465,396  
Tax withholdings paid on equity awards     (50,640 )     -  
Tax shares sold to pay for tax withholdings on equity awards     40,243       -  
Tax withholdings paid related to net share settlement of equity awards     (32,505 )     -  
Stockholders’ equity at end of period   $ 24,669,082     $ 18,031,071