Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity (Unaudited)

v3.19.2
Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
Common Stock [Member]
Additional Paid-In Capital [Member]
Warrants [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit [Member]
Total
Balance at Jul. 31, 2017 $ 216 $ 93,868,034 $ 11,775,807 $ (3,620) $ (94,944,455) $ 10,695,982
Balance, shares at Jul. 31, 2017 2,161,819   904,474      
Exercise of common stock warrants $ 69 14,705,221 $ (4,705,307) 9,999,983
Exercise of common stock warrants, shares 695,339   (695,340)      
Exercise of common stock options $ 2 226,283 226,285
Exercise of common stock options, shares 18,039          
Common stock issued for employee stock purchase plan 35,809 35,809
Common stock issued for employee stock purchase plan, shares 4,060          
Stock-based compensation expense 5,904,920 5,904,920
Stock-based compensation expense, shares          
At-the-market offering program, net of issuance costs of $299,963 $ 9 825,654 825,663
At-the-market offering program, net of issuance costs of $299,963, shares 89,731          
Public offering on October 25, 2017, net of issuance costs of $901,137 $ 61 4,320,446 $ 2,936,173 7,256,680
Public offering on October 25, 2017, net of issuance costs of $901,137, shares 607,093   491,745      
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   251,571      
Public offering in February 2018, net of issuance costs of $2,249,169 $ 154 20,749,168 20,749,322
Public offering in February 2018, net of issuance costs of $2,249,169, shares 1,533,333          
Cancellation of expired warrants 1,200,742 $ (1,200,742)
Cancellation of expired warrants, shares   (56,645)      
Common stock issued for services $ 8 1,443,642 1,443,650
Common stock issued for services, shares 79,859        
Dividends declared ($0.00 per share)
Net loss and comprehensive loss (7,934) (26,697,106) (26,705,040)
Balance at Apr. 30, 2018 $ 519 143,084,488 $ 11,271,327 (11,554) (121,641,561) 32,703,219
Balance, shares at Apr. 30, 2018 5,189,273   895,805      
Balance at Jan. 31, 2018 $ 358 118,126,349 $ 11,465,127 20,245 (111,581,008) 18,031,071
Balance, shares at Jan. 31, 2018 3,582,791   928,305      
Exercise of common stock warrants $ 3 600,047 $ (193,800) 406,250
Exercise of common stock warrants, shares 32,500   (32,500)      
Exercise of common stock options $ 1 68,359 68,360
Exercise of common stock options, shares 6,395          
Common stock issued for employee stock purchase plan 16,761 16,761
Common stock issued for employee stock purchase plan, shares 1,896          
Stock-based compensation expense 2,923,407 2,923,407
Stock-based compensation expense, shares        
Public offering in February 2018, net of issuance costs of $2,249,169 $ 154 20,749,168 20,749,322
Public offering in February 2018, net of issuance costs of $2,249,169, shares 1,533,333        
Common stock issued for services $ 3 600,397 600,400
Common stock issued for services, shares 32,358          
Dividends declared ($0.00 per share)
Net loss and comprehensive loss (31,799) (10,060,553) (10,092,352)
Balance at Apr. 30, 2018 $ 519 143,084,488 $ 11,271,327 (11,554) (121,641,561) 32,703,219
Balance, shares at Apr. 30, 2018 5,189,273   895,805      
Balance at Jul. 31, 2018 $ 535 145,749,189 $ 11,271,327 (16,024) (134,080,821) 22,924,206
Balance, shares at Jul. 31, 2018 5,351,162   895,805      
Exercise of common stock options $ 4 566,131 566,135
Exercise of common stock options, shares 43,029          
Common stock issued for employee stock purchase plan 23,390 23,390
Common stock issued for employee stock purchase plan, shares 2,635          
Stock-based compensation expense $ 4 2,988,345 2,988,349
Stock-based compensation expense, shares 38,058          
Tax withholdings paid on equity awards (86,430) (86,430)
Tax shares sold to pay for tax withholdings on equity awards 68,739 68,739
Tax withholdings paid related to net share settlement of equity awards (32,505) (32,505)
Private placement on October 8, 2018, net of issuance costs of $573,189 $ 53 7,446,758 7,446,811
Private placement on October 8, 2018, net of issuance costs of $573,189, shares 533,333          
Private placement on December 6, 2018, net of issuance costs of $304,916 $ 47 6,695,038 6,695,085
Private placement on December 6, 2018, net of issuance costs of $304,916, shares 466,666          
Private placement, net of issuance costs of $80,575 $ 61 2,439,293 2,439,354
Private placement, net of issuance costs of $80,575, shares 610,875          
Cancellation of expired warrants 100,161 $ (100,161)
Cancellation of expired warrants, shares   (2,915)      
Common stock issued for services $ 5 657,499 657,504
Common stock issued for services, shares 48,000          
Modification of equity award $ 2 135,423 135,425
Modification of equity award, shares 17,500          
Dividends declared ($0.00 per share)
Net loss and comprehensive loss 124,675 (22,773,744) (22,649,069)
Balance at Apr. 30, 2019 $ 711 166,751,031 $ 11,171,166 108,651 (156,854,565) 21,176,994
Balance, shares at Apr. 30, 2019 7,111,258   892,890      
Balance at Jan. 31, 2019 $ 646 163,422,900 $ 11,171,166 45,834 (149,971,464) 24,669,082
Balance, shares at Jan. 31, 2019 6,462,135   892,890      
Stock-based compensation expense $ 2 684,236 684,238
Stock-based compensation expense, shares 22,948          
Tax withholdings paid on equity awards (35,788) (35,788)
Tax shares sold to pay for tax withholdings on equity awards 28,496 28,496
Private placement, net of issuance costs of $80,575 $ 61 2,439,293 2,439,354
Private placement, net of issuance costs of $80,575, shares 610,875          
Common stock issued for services $ 2 211,894 211,896
Common stock issued for services, shares 15,300          
Dividends declared ($0.00 per share)
Net loss and comprehensive loss   62,817 (6,883,101) (6,820,284)
Balance at Apr. 30, 2019 $ 711 $ 166,751,031 $ 11,171,166 $ 108,651 $ (156,854,565) $ 21,176,994
Balance, shares at Apr. 30, 2019 7,111,258   892,890