Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Changes in Stockholders' Equity (Unaudited)

v3.20.2
Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
Preferred Stock - Series F [Member]
Preferred Stock - Series G [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Total
Balance at Apr. 30, 2019 $ 1,986 $ 33,425,931 $ (26,275,102) $ 7,152,815
Balance, shares at Apr. 30, 2019 1,986,063      
Issuance of preferred stock and warrants for cash, net of offering cost $ 1 2,401,201 2,401,202
Issuance of preferred stock and warrants for cash, net of offering cost, shares 1,250      
Conversion of preferred stock into common stock $ 108 (108)
Conversion of preferred stock into common stock, shares (616) 108,071      
Issuance of common stock for services $ 2 24,998 25,000
Issuance of common stock for services, shares 2,153      
Issuance of common stock for accrued services $ 1 12,499 12,500
Issuance of common stock for accrued services, shares 1,068      
Stock options granted for services 52,214 52,214
Stock-based compensation in connection with restricted common stock award grants and restricted common stock unit grants 52,682 52,682
Stock-based compensation in connection with restricted common stock award grants and restricted common stock unit grants, shares      
Cancellation of common stock $ (9) 9
Cancellation of common stock, shares (8,500)      
Deemed dividends - series F preferred stock 2,022,712 (2,022,712) 2,022,712
Net loss (1,308,599) (1,308,599)
Balance at Jul. 31, 2019 $ 1 $ 2,088 37,992,138 (29,606,413) 8,387,814
Balance, shares at Jul. 31, 2019 634 2,088,855      
Balance at Apr. 30, 2020   $ 2,903 41,093,050 (31,587,952) 9,508,001
Balance, shares at Apr. 30, 2020 57 2,903,393      
Conversion of preferred stock into common stock $ 21 (21)
Conversion of preferred stock into common stock, shares (57) 20,357      
Stock options granted for services 51,262 51,262
Stock-based compensation in connection with restricted common stock award grants and restricted common stock unit grants $ 2 20,216 20,218
Stock-based compensation in connection with restricted common stock award grants and restricted common stock unit grants, shares 1,875      
Deemed dividends - series F preferred stock          
Net loss (957,120) (957,120)
Balance at Jul. 31, 2020 $ 2,926 $ 41,164,507 $ (32,545,072) $ 8,622,361
Balance, shares at Jul. 31, 2020 2,925,625