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Concentration of Risk (Tables)
9 Months Ended
Jan. 31, 2021
Risks and Uncertainties [Abstract]  
Summary Of Percentage Of Sales
The following table summarizes the percentage of net sales attributable to the Company's two largest customers for the three- and nine-months ended January 31, 2021 and 2020:
Three Months EndedNine Months Ended
January 31,January 31,
 2021202020212020
Customer A31.8%30.1%30.1%29.2%
Customer B18.4%18.3%18.2%17.2%