Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity

v3.20.2
Consolidated Statements of Stockholders' Equity - 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 $ 535 $ 145,749,189 $ 11,271,327 $ (16,024) $ (134,080,821) $ 22,924,206
Balance, shares at Jul. 31, 2018 5,351,290   895,805      
Repurchase of fractional shares (567) (567)
Repurchase of fractional shares, shares (1,456)        
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 $ 1 27,290 27,291
Common stock issued for employee stock purchase plan, shares 4,688        
Stock-based compensation expense $ 5 3,364,366 3,364,371
Stock-based compensation expense, shares 54,755          
Tax withholdings paid on equity awards (101,480) (101,480)
Tax shares sold to pay for tax withholdings on equity awards 83,246 83,246
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 on May 24, 2019, net of issuance costs of $1,025,655 $ 349 6,377,220 $ 3,599,156 9,976,725
Private placement on May 24, 2019, net of issuance costs of $1,025,655, shares 3,492,063   2,797,618      
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 4,060,759 $ (4,060,759)
Cancellation of expired warrants, shares   (61,470)      
Common stock issued for services $ 6 845,988 845,994
Common stock issued for services, shares 60,300        
Modification of equity award $ 2 135,423 135,425
Modification of equity award, shares 17,500        
Net loss and comprehensive loss 185,061 (30,276,053) (30,090,992)
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 7,012 7,012
Common stock issued for employee stock purchase plan, shares 4,199        
Stock-based compensation expense $ 22 3,517,106 3,517,128
Stock-based compensation expense, shares 220,233        
Tax withholdings paid on equity awards (26,859) (26,859)
Tax shares sold to pay for tax withholdings on equity awards 26,495 26,495
Tax withholdings paid related to net share settlement of equity awards (263,100) (263,100)
Cancellation of expired warrants 2,465,396 $ (2,465,396)
Cancellation of expired warrants, shares   (251,567)      
Common stock issued for services $ 20 931,330 931,350
Common stock issued for services, shares 196,999        
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)      
February 2020 Financing, net of issuance costs of$1,954,678 $ 1,200 28,044,122 28,045,322
February 2020 Financing, net of issuance costs of$1,954,678, shares 12,000,000        
Net loss and comprehensive loss (188,541) (42,253,426) (42,441,967)
Balance at Jul. 31, 2020 $ 2,305 $ 214,789,808 $ 5,708,127 $ (19,504) $ (206,610,300) $ 13,870,436
Balance, shares at Jul. 31, 2020 23,054,474   3,114,288