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Revenue Recognition (Tables) | 3 Months Ended
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Jul. 31, 2021
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | A summary of net sales transferred to customers over time and at a point in time for the periods ended July 31, 2021 and July 31, 2020 is as follows (in thousands):
| Three Months Ended
| July 31, 2021 |  | July 31, 2020
| Domestic |  | International |  | Total |  | Domestic |  | International |  | Total
Over Time | $ | 28,652 |  |  | $ | 9,830 |  |  | $ | 38,482 |  |  | $ | 29,080 |  |  | $ | 6,365 |  |  | $ | 35,445 |
Point in Time | 1,011 |  |  | — |  |  | 1,011 |  |  | 978 |  |  | — |  |  | 978 |
Total | $ | 29,663 |  |  | $ | 9,830 |  |  | $ | 39,493 |  |  | $ | 30,058 |  |  | $ | 6,365 |  |  | $ | 36,423 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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- References No definition available. + Details
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