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Note 18 – Share Based Awards (Tables)
6 Months Ended
Oct. 31, 2023
Share-Based Payment Arrangement [Abstract]  
[custom:ScheduleOfAssumptionsUsed1TableTextBlock]
      2023       2022  
Exercise Price   $ 0.95 1.12     $ 2.38  
Stock price on date of grant     0.95 1.12       2.38  
Risk-free interest rate     3.47 4.34%       3.34%  
Dividend yield              —    
Expected term (years)     6.00 8.25       8.25  
Volatility     242.38 260.22%       260.06%  
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]
  Shares   Weighted-Average Exercise Price   Weighted-Average Remaining Contractual Term   Aggregate Intrinsic Value
Outstanding as of April 30, 2022     3,694,142     $ 2.17       8.56        1,407,545   
Granted     1,503,500       1.40                  
Exercised                                  
Forfeited or expired     (412,833     2.67                  
Outstanding as of April 30, 2023     4,784,809     1.88       8.72        74,586   
Granted     2,541,042       1.01                  
Exercised                                  
Forfeited or expired     (464,334     2.43                  
Outstanding as of October 31, 2023     6,861,517     1.52       8.54     57,374  
Exercisable as of October 31, 2023     3,261,527     $ 1.91       6.96     $ 57,374  
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
  Shares  Weighted Average Grant-Date Fair Value Per Share
Unvested and outstanding as of April 30, 2022   1,083,675   $2.59 
Granted   780,884    2.14 
Vested   (1,062,372)   2.42 
Forfeited   (21,127)   2.13 
Unvested and outstanding as of April 30, 2023   781,060    2.44 
Granted   298,643    1.06 
Vested   (229,197)   1.92 
Forfeited   (70,656)   1.25 
Unvested and outstanding as of October 31, 2023   779,850   $2.11 
Schedule of Deferred Compensation Arrangement with Individual, Share-Based Payments [Table Text Block]
        
  

Three months ended

October 31,

 

Six months ended

October 31,

   2023  2022  2023  2022
Operations  $238,522   $225,879   $429,621   $384,310 
Research and development   147,629    209,497    275,046    354,295 
Sales and marketing   208,903    162,269    374,212    269,343 
General and administrative   601,271    649,151    1,029,052    994,319 
Total  $1,196,325   $1,246,796   $2,107,931   $2,002,267