Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity

v3.10.0.1
Consolidated Statements of Stockholders' Equity - USD ($)
Common Stock [Member]
Additional Paid-In Capital [Member]
Warrants [Member]
Accumulated Other Comprehensive Loss [Member]
Accumulated Deficit [Member]
Total
Balance at Jul. 31, 2016 $ 1,804 $ 88,257,430 $ 13,288,527 $ (73,494,657) $ 28,053,104
Balance, shares at Jul. 31, 2016 18,036,263   12,859,286      
Exercise of common stock warrants $ 354 68,537 $ (33,446) 35,445
Exercise of common stock warrants, shares 3,544,593   (3,344,593)      
Exercise of common stock options
Exercise of common stock options, shares 918       7,500
Common stock issued for employee stock purchase plan $ 4 44,057 $ 44,061
Common stock issued for employee stock purchase plan, shares 36,420        
Cancellation of expired warrants 1,479,274 $ (1,479,274)
Cancellation of expired warrants, shares   (469,953)      
Stock-based compensation expense 4,016,790 4,016,790
Stock-based compensation expense, shares        
Net loss and comprehensive loss (3,620) (21,449,798) (21,453,418)
Balance at Jul. 31, 2017 $ 2,162 93,866,088 $ 11,775,807 (3,620) (94,944,455) 10,695,982
Balance, Shares at Jul. 31, 2017 21,618,194   9,044,740      
Exercise of common stock warrants $ 695 14,704,596 $ (4,705,307) 9,999,984
Exercise of common stock warrants, shares 6,953,392   (6,953,392)      
Exercise of common stock options $ 25 321,120 $ 321,145
Exercise of common stock options, shares 252,270       252,270
Common stock issued for employee stock purchase plan $ 4 35,805 $ 35,809
Common stock issued for employee stock purchase plan, shares 40,606        
Cancellation of expired warrants $ 1,200,742 $ (1,200,742)
Cancellation of expired warrants, shares (566,457)      
Stock-based compensation expense $ 128 $ 8,252,387 8,252,515
Stock-based compensation expense, shares 1,277,015          
Net loss and comprehensive loss (12,404) (39,136,366) (39,148,770)
Tax withholdings paid related to net share settlement of equity awards (181,550) (181,550)
At-the-market offering program, net of issuance costs of $299,963 $ 90 825,573   825,663
At-the-market offering program, net of issuance costs of $299,963, Shares 897,311        
Public offering on October 25, 2017, net of issuance costs of $901,137 $ 607 4,319,900 $ 2,936,173 7,256,680
Public offering on October 25, 2017, net of issuance costs of $901,137, Shares 6,070,934   4,917,457      
Warrant Exercise Inducement Offering on November 13, 2017 (195,431) $ 2,465,396 2,269,965
Warrant Exercise Inducement Offering on November 13, 2017, Shares   2,515,711      
Public offering in February 2018, net of issuance costs of $2,249,169 $ 1,533 20,749,299 20,750,832
Public offering in February 2018, net of issuance costs of $2,249,169, Shares 15,333,334        
Common stock issued for services $ 107 1,845,844 1,845,951
Common stock issued for services, Shares 1,068,570        
Balance at Jul. 31, 2018 $ 5,351 $ 145,744,373 $ 11,271,327 $ (16,024) $ (134,080,821) $ 22,924,206
Balance, Shares at Jul. 31, 2018 53,511,626   8,958,059