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Concentration of Risk (Tables) | 9 Months Ended
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Jan. 31, 2020
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, 2020 and 2019:
| Three Months Ended |  | Nine months ended
| January 31, |  | January 31,
| 2020 |  | 2019 |  | 2020 |  | 2019
Customer A | 30.1% |  | 29.3% |  | 29.2% |  | 29.0%
Customer B | 18.3% |  | 19.2% |  | 17.2% |  | 18.4%

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