Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY

v3.22.2
CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Total
Common Stock
Additional Paid-In Capital
Treasury Stock
Accumulated Deficit
Beginning balance at Apr. 30, 2020 $ 41,747,957 $ 21,771 $ 89,505,216 $ (70,000) $ (47,709,030)
Beginning balance (in shares) at Apr. 30, 2020   21,770,520      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation 3,958,085   3,958,085    
Common stock issued for stock options exercised for cash $ 2,669,247 $ 1,389 4,485,272 (1,817,414)  
Common stock issued for stock options exercised for cash (in shares) 52,778 1,389,463      
Common stock issued for cashless exercise of stock options $ 0 $ 35 (35)    
Common stock issued for cashless exercise of stock options (in shares)   34,773      
Common stock issued for conversion of Convertible Notes (in shares)   1,398,602      
Common stock issued for conversion of Convertible Notes 10,000,000 $ 1,399 9,998,601    
Common stock issued for vested restricted stock units 0 $ 296 (296)    
Common stock issued for vested restricted stock units (in shares)   295,557      
Common stock issued for warrants exercised for cash 1,081,792 $ 192 1,081,600    
Common stock issued for warrants exercised for cash (in shares)   192,049      
Common stock issued for services 19,900 $ 2 19,898    
Common stock issued for services (in shares)   2,000      
Modification charge for warrants exercised 25,966   25,966    
Amortization of warrant-based cost issued for services 36,500   36,500    
Cancellation of treasury stock 0 $ (17) (69,983) 70,000  
Cancellation of treasury stock (in shares)   (16,667)      
Net loss (10,448,973)       (10,448,973)
Ending balance at Apr. 30, 2021 $ 49,090,474 $ 25,067 109,040,824 (1,817,414) (58,158,003)
Ending balance (in shares) at Apr. 30, 2021 24,910,811 25,066,297      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation $ 2,534,665   2,534,665    
Common stock issued for stock options exercised for cash $ 191,034 $ 58 190,976    
Common stock issued for stock options exercised for cash (in shares) 200,000 58,419      
Common stock issued for cashless exercise of stock options $ 0 $ 30 (30)    
Common stock issued for cashless exercise of stock options (in shares)   30,156      
Common stock issued for vested restricted stock units 0 $ 86 (86)    
Common stock issued for vested restricted stock units (in shares)   85,576      
Common stock issued for warrants exercised for cash 0        
Common stock issued for warrants exercised for cash (in shares)   0      
Common stock issued for services 0 $ 117 (117)    
Warrants issued as a fee for line of credit agreement 255,500   255,500    
Amortization of warrant-based cost issued for services 59,832   59,832    
Net loss (9,585,781)       (9,585,781)
Ending balance at Apr. 30, 2022 $ 42,545,724 $ 25,358 $ 112,081,564 $ (1,817,414) $ (67,743,784)
Ending balance (in shares) at Apr. 30, 2022 25,202,278 25,357,764