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Note 19 – Derivatives (Tables)
 9 Months Ended
Jan. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
[custom:ScheduleOfAssumptionsUsed2TableTextBlock]
    January 31, 2024    April 30, 2023 
Risk-free interest rate    4.73 – 5.54%    2.83 – 4.51% 
Expected dividend yield   —      —   
Expected term (in years)    1.67 – 2.50    2.42 – 3.50 
Expected volatility    74.41 – 107.90%    138.49 – 235.23% 
Schedule of Derivative Liabilities at Fair Value [Table Text Block]
   January 31, 2024  April 30, 2023
Balance, beginning of period  $588,205   $1,607,497 
Additions   —      —   
Eliminated upon conversion of notes/exercise of warrants   —      —   
Changes in fair value   (302,821)   (1,019,292)
Balance, end of period  $285,384   $588,205 

    

Changes in fair value primarily relate to changes in the Company’s stock price during the period, with increases in the stock price increasing the liability and decreases in the stock price reducing the liability.