Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Warrants (Tables)

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Note 15 - Warrants (Tables)
9 Months Ended
Jan. 31, 2022
Note 15 - Warrants  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
   

 

Number of Shares 

 

 

Weighted-average Exercise Price per Share

 

 Weighted-average Remaining Contractual Term

(in years) 

 

 

Aggregate Intrinsic Value 

  Balance as of April 30, 2020                  —           
  Granted     1,074,998      $ 1.50                  
  Exercised     (201,666 )     1.50                  
  Outstanding as of April 30, 2021 873,332     1.50       4.62     $ 2,218,263  
  Granted  733,333       5.45                  
  Exercised (66,666     1.50                  
  Outstanding at January 31, 2022 1,539,999    $ 3.38       4.13     $ 1,371,332