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Significant Accounting Policies (Tables)
 3 Months Ended
Jul. 31, 2022
Accounting Policies [Abstract]  
Summary of antidilutive securities excluded from earnings per share calculations
The following table reflects the total potential share-based instruments outstanding at July 31, 2022 and 2021 that could have an effect on the future computation of dilution per common share, had their effect not been anti-dilutive:
 July 31,
 20222021
Total common stock equivalents1,722,155 1,734,428