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Note 14 – Common Stock (Tables)
6 Months Ended
Oct. 31, 2024
Equity [Abstract]  
Schedule of Common Stock Outstanding Roll Forward [Table Text Block]
Description of Shares  Shares Issued
Shares outstanding as of April 30, 2023   54,568,065 
Vesting of restricted stock to employees, net of shares withheld of 27,189 to pay taxes   192,742 
Vesting of restricted stock to Board of Directors   252,214 
Vesting of restricted stock to consultants   1,761 
Conversion of preferred stock   818,334 
Issuance of common stock through ATM facilities   53,235 
Issuance of common stock through public offering   18,400,000 
Exercise of stock options   3,000 
Shares outstanding as of April 30, 2024   74,289,351 
Vesting of restricted stock to employees, net of shares withheld of 138,744 to pay taxes   540,590 
Vesting of restricted stock to Board of Directors   61,447 
Exercise of stock options   58,446 
Exercise of warrants   530,578 
FlightWave acquisition   2,544,991 
Shares outstanding as of October 31, 2024   78,025,403