Annual report pursuant to Section 13 and 15(d)

Stock compensation expense (Details)

v3.22.2
Stock compensation expense (Details) - USD ($)
12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Share-Based Payment Arrangement [Abstract]    
General and administrative $ 1,521,951 $ 1,688,025
Research and development 516,456 1,269,987
Operations 783,781 220,048
Sales and marketing 469,447 210,156
 Total $ 3,291,635 $ 3,388,216