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Concentration of Risk (Tables) | 6 Months Ended
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Oct. 31, 2019
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 six-months ended October 31, 2019 and 2018:
| Three Months Ended |  | Six months ended
| October 31, |  | October 31,
| 2019 |  | 2018 |  | 2019 |  | 2018
Customer A | 28.7% |  | 28.7% |  | 28.7% |  | 28.9%
Customer B | 15.5% |  | 17.5% |  | 16.6% |  | 18.1%

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