Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity (Unaudited)

v3.20.1
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, 2018 [1] $ 535 $ 145,749,189 $ 11,271,327 $ (16,024) $ (134,080,821) $ 22,924,206
Balance, shares at Jul. 31, 2018 [1] 5,351,162   895,805      
Exercise of common stock options [1] $ 4 566,131 566,135
Exercise of common stock options, shares [1] 43,029        
Common stock issued for employee stock purchase plan [1] 23,390 23,390
Common stock issued for employee stock purchase plan, shares [1] 2,635        
Stock-based compensation expense [1] $ 4 2,988,345 2,988,349
Stock-based compensation expense, shares [1] 38,058        
Tax withholdings paid on equity awards [1] (86,430) (86,430)
Tax shares sold to pay for tax withholdings on equity awards [1] 68,739 68,739
Tax withholdings paid related to net share settlement of equity awards [1] (32,505) (32,505)
Public offering in October 2018, net of issuance costs of $573,189 [1] $ 53 7,446,758 7,446,811
Public offering in October 2018, net of issuance costs of $573,189, shares [1] 533,333          
Public offering in December 2018, net of issuance costs of $304,916 [1] $ 47 6,695,038 6,695,085
Public offering in December 2018, net of issuance costs of $304,916, shares [1] 466,666          
Private placement, net of issuance costs of $80,575 [1] $ 61 2,439,293 2,439,354
Private placement, net of issuance costs of $80,575, shares [1] 610,875          
Cancellation of expired warrants [1] 100,161 $ (100,161)
Cancellation of expired warrants, shares [1]   (2,915)      
Common stock issued for services [1] $ 5 657,499 657,504
Common stock issued for services, shares [1] 48,000        
Modification of equity award [1] $ 2 135,423 135,425
Modification of equity award, shares [1] 17,500          
Dividends declared ($0.00 per share) [1]
Net loss and comprehensive loss [1] 124,675 (22,773,744) (22,649,069)
Balance at Apr. 30, 2019 [1] $ 711 166,751,031 $ 11,171,166 108,651 (156,854,565) 21,176,994
Balance, shares at Apr. 30, 2019 [1] 7,111,258   892,890      
Balance at Jan. 31, 2019 [1] $ 646 163,422,900 $ 11,171,166 45,834 (149,971,464) 24,669,082
Balance, shares at Jan. 31, 2019 [1] 6,462,135   892,890      
Stock-based compensation expense [1] $ 2 684,236 684,238
Stock-based compensation expense, shares [1] 22,948          
Tax withholdings paid on equity awards [1] (35,788) (35,788)
Tax shares sold to pay for tax withholdings on equity awards [1] 28,496 28,496
Private placement, net of issuance costs of $80,575 [1] $ 61 2,439,293 2,439,354
Private placement, net of issuance costs of $80,575, shares [1] 610,875        
Common stock issued for services [1] $ 2 211,894 211,896
Common stock issued for services, shares [1] 15,300          
Dividends declared ($0.00 per share) [1]
Net loss and comprehensive loss [1] 62,817 (6,883,101) (6,820,284)
Balance at Apr. 30, 2019 [1] $ 711 166,751,031 $ 11,171,166 108,651 (156,854,565) 21,176,994
Balance, shares at Apr. 30, 2019 [1] 7,111,258   892,890      
Balance at Jul. 31, 2019 $ 1,063 177,656,149 $ 10,809,724 169,037 (164,356,874) 24,279,099
Balance, shares at Jul. 31, 2019 10,633,043   3,631,953      
Common stock issued for employee stock purchase plan 4,744 4,744
Common stock issued for employee stock purchase plan, shares 2,841          
Stock-based compensation expense $ 3 2,213,173 2,213,176
Stock-based compensation expense, shares 28,688        
Tax withholdings paid on equity awards (21,070) (21,070)
Tax shares sold to pay for tax withholdings on equity awards 21,416 21,416
Cancellation of expired warrants 2,465,396 $ (2,465,396)
Cancellation of expired warrants, shares     (251,567)      
Common stock issued for services $ 11 486,138 486,149
Common stock issued for services, shares 106,999        
Modification of equity award          
Dividends declared ($0.00 per share)
Cash paid for stock options cancellation (25,819) (25,819)
Repurchase of warrants 2,457,976 $ (2,636,201) (178,225)
Repurchase of warrants, shares     (266,098)      
Private placement in February 2020, net of issuance costs of $1,954,678 $ 1,200 28,044,122 28,045,322
Private placement in February 2020, net of issuance costs of $1,954,678, shares 12,000,000          
Net loss and comprehensive loss 161,755 (33,282,689) (33,120,934)
Balance at Apr. 30, 2020 $ 2,277 213,302,225 $ 5,708,127 330,792 (197,639,563) 21,703,858
Balance, shares at Apr. 30, 2020 22,771,571   3,114,288      
Balance at Jan. 31, 2020 $ 1,075 184,965,590 $ 5,708,127 251,521 (187,751,382) 3,174,931
Balance, shares at Jan. 31, 2020 10,752,529   3,114,288      
Stock-based compensation expense $ 1 272,712 272,713
Stock-based compensation expense, shares 6,542          
Tax withholdings paid on equity awards (5,394) (5,394)
Tax shares sold to pay for tax withholdings on equity awards 5,820 5,820
Common stock issued for services $ 1 19,375 19,376
Common stock issued for services, shares 12,500          
Dividends declared ($0.00 per share)
Private placement in February 2020, net of issuance costs of $1,954,678 $ 1,200 28,044,122 28,045,322
Private placement in February 2020, net of issuance costs of $1,954,678, shares 12,000,000        
Net loss and comprehensive loss 79,271 (9,888,181) (9,808,910)
Balance at Apr. 30, 2020 $ 2,277 $ 213,302,225 $ 5,708,127 $ 330,792 $ (197,639,563) $ 21,703,858
Balance, shares at Apr. 30, 2020 22,771,571   3,114,288      
[1] On May 20, 2019, the Company effected a 1 for 10 reverse stock split. Shares have been retroactively restated.