Annual report pursuant to Section 13 and 15(d)

Summary of shares of common stock issued (Details)

v3.23.2
Summary of shares of common stock issued (Details) - Common Stock [Member] - shares
 12 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Shares, Outstanding, Beginning Balance 53,748,735 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 to employees, net of shares withheld of 273,874 to pay taxes and 9,000 to repay a Note 653,308 225,637
Vesting of restricted stock to Board of Directors 116,507 48,124
Vesting of restricted stock to consultants 9,683 7,042
Shares issued for services 39,832 111,667
Shares, Outstanding, Ending Balance 54,568,065 53,748,735