Quarterly report pursuant to Section 13 or 15(d)

Note 15 ??? Common Stock (Tables)

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Note 15 – Common Stock (Tables)
9 Months Ended
Jan. 31, 2023
Equity [Abstract]  
Schedule of Common Stock Outstanding Roll Forward [Table Text Block]
Description of Shares   Shares Issued
Shares outstanding as of April 30, 2021     29,431,264  
Conversion of Series A preferred stock     1,321,996  
Conversion of Series B preferred stock     818,333  
Exercise of warrants     66,666  
Acquisition of Skypersonic on May 7, 2021, see Note 1     707,293  
Acquisition of Teal Drones on August 31, 2021, see Note 1     3,588,272  
Public offerings which generated gross proceeds of $76 million and net proceeds of approximately $70.1 million     17,333,334  
Exercise of stock options     89,107  
Vesting of restricted stock units to employees, net of shares withheld of 225,869 to pay taxes and 92,812 to repay a Note     225,637  
Vesting of restricted stock units to Board of Directors     48,124  
Vesting of restricted stock units to consultants     7,042  
Shares issued for services     111,667  
Shares outstanding as of April 30, 2022     53,748,735  
Vesting of restricted stock units to employees, net of shares withheld of 542,151 to pay taxes and 9,000 to repay a Note     534,318  
Vesting of restricted stock units to Board of Directors     95,366  
Vesting of restricted stock units to consultants     7,042  
Shares outstanding as of January 31, 2023     54,385,461