XML 52 R42.htm IDEA: XBRL DOCUMENT v3.22.2.2
Note 18 – Derivatives (Tables)
 6 Months Ended
Oct. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
[custom:ScheduleOfAssumptionsUsed2TableTextBlock]
    October 31, 2022    April 30, 2022 
Risk-free interest rate    2.83 – 4.51%    0.52 – 2.87% 
Expected dividend yield   —      —   
Expected term (in years)    2.92 – 3.50    3.42 – 4.50 
Expected volatility    190.09 – 235.23%    211.02 – 292.28% 
Schedule of Derivative Liabilities at Fair Value [Table Text Block]
   October 31, 2022  April 30, 2022
Balance, beginning of period  $1,607,497   $2,812,767 
Additions   —      —   
Eliminated upon conversion of notes/exercise of warrants   —      (163,141)
Changes in fair value   (593,822)   (1,042,129)
Balance, end of period  $1,013,675   $1,607,497