Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

v3.20.4
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Total
Common Stock
Additional Paid-In Capital
Treasury Stock
Accumulated Deficit
Beginning balance at Apr. 30, 2019 $ 26,461,428 $ 18,666 $ 68,562,727 $ (70,000) $ (42,049,965)
Beginning balance (in shares) at Apr. 30, 2019   18,665,551      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation 1,627,304   1,627,304    
Common stock issued for cashless stock options exercised 0 $ 191 (191)    
Common stock issued for cashless stock options exercised (in shares)   190,559      
Common stock issued for stock options exercised for cash 768,381 $ 234 768,147    
Common stock issued for stock options exercised for cash (in shares)   234,233      
Common stock issued for cashless warrant exercise 0 $ 77 (77)    
Common stock issued for cashless warrant exercise (in shares)   76,929      
Amortization of warrant based cost 27,690   27,690    
Amortization of restricted stock issued for services 97,748   97,748    
Restricted stock issued for services, subject to vesting 0 $ 144 (144)    
Restricted Stock Issued for Services, subject to vesting (in shares)   144,803      
Common stock issued for equity raise, net of underwriter costs 16,044,879 $ 2,415 16,042,464    
Common stock issued in equity raise, net of underwriter costs (in shares)   2,415,000      
Other offerings costs (51,282)   (51,282)    
Beneficial conversion feature on convertible debt 1,692,309   1,692,309    
Common stock short swing reclamation 5,433   5,433    
Net loss (4,994,502)       (4,994,502)
Ending balance at Jan. 31, 2020 41,679,388 $ 21,727 88,772,128 (70,000) (47,044,467)
Ending balance (in shares) at Jan. 31, 2020   21,727,075      
Beginning balance at Oct. 31, 2019 24,967,090 $ 19,142 69,781,363 (70,000) (44,763,415)
Beginning balance (in shares) at Oct. 31, 2019   19,142,316      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation 737,820   737,820    
Common stock issued for cashless stock options exercised 0 $ 9 (9)    
Common stock issued for cashless stock options exercised (in shares)   8,352      
Common stock issued for stock options exercised for cash 530,668 $ 121 530,547    
Common stock issued for stock options exercised for cash (in shares)   121,407      
Amortization of warrant based cost 9,125   9,125    
Amortization of restricted stock issued for services 24,398   24,398    
Restricted stock issued for services, subject to vesting 0 $ 40 (40)    
Restricted Stock Issued for Services, subject to vesting (in shares)   40,000      
Common stock issued for equity raise, net of underwriter costs 16,044,879 $ 2,415 16,042,464    
Common stock issued in equity raise, net of underwriter costs (in shares)   2,415,000      
Other offerings costs (51,282)   (51,282)    
Beneficial conversion feature on convertible debt 1,692,309   1,692,309    
Common stock short swing reclamation 5,433   5,433    
Net loss (2,281,052)       (2,281,052)
Ending balance at Jan. 31, 2020 41,679,388 $ 21,727 88,772,128 (70,000) (47,044,467)
Ending balance (in shares) at Jan. 31, 2020   21,727,075      
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 3,019,828   3,019,828    
Common stock issued for cashless stock options exercised 0 $ 22 (22)    
Common stock issued for cashless stock options exercised (in shares)   22,339      
Common stock issued for conversion of Convertible Notes 10,000,000 $ 1,399 9,998,601    
Common stock issued for conversion of Convertible Notes (in shares)   1,398,602      
Common stock issued for stock options exercised for cash 2,578,700 $ 1,365 4,394,749 (1,817,414)  
Common stock issued for stock options exercised for cash (in shares)   1,364,721      
Common stock issued for vested restricted stock units 0 $ 206 (206)    
Common stock issued for vested restricted stock units (in shares)   206,109      
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 27,375   27,375    
Cancellation of treasury stock 0 $ (17) (69,983) 70,000  
Cancellation of Treasury Stock (in shares)   (16,667)      
Net loss (8,128,987)       (8,128,987)
Ending balance at Jan. 31, 2021 50,372,531 $ 24,940 108,003,022 (1,817,414) (55,838,017)
Ending balance (in shares) at Jan. 31, 2021   24,939,673      
Beginning balance at Oct. 31, 2020 52,094,217 $ 24,417 105,092,551 0 (53,022,751)
Beginning balance (in shares) at Oct. 31, 2020   24,416,539      
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock-based compensation 701,170   701,170    
Common stock issued for stock options exercised for cash 363,385 $ 447 2,180,352 (1,817,414)  
Common stock issued for stock options exercised for cash (in shares)   447,134      
Common stock issued for vested restricted stock units 0 $ 74 (74)    
Common stock issued for vested restricted stock units (in shares)   74,000      
Common stock issued for services 19,900 $ 2 19,898    
Common stock issued for services (in shares)   2,000      
Amortization of warrant based cost 9,125   9,125    
Net loss (2,815,266)       (2,815,266)
Ending balance at Jan. 31, 2021 $ 50,372,531 $ 24,940 $ 108,003,022 $ (1,817,414) $ (55,838,017)
Ending balance (in shares) at Jan. 31, 2021   24,939,673