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Share Based Awards (Tables)
9 Months Ended
Jan. 31, 2021
Share-based Payment Arrangement [Abstract]  
Stock compensation expense
   3 months  9 months
General and administrative  $336,301   $525,559 
Research and development   179,157    199,047 
Operations   170,612    175,586 
Sales and marketing   168,125    168,125 
   $854,195   $1,068,317