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Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 31, 2023 | Jan. 31, 2022 | Jan. 31, 2023 | Jan. 31, 2022
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 60,821 | $ 40,633 | $ 165,508 | $ 119,157
Intersegment revenues | 0 | 0 | 0 | 0
Earnings (loss) before income taxes | 2,060 | (887) | 2,176 | (4,830)
Corporate / Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Intersegment revenues | (3,510) | (1,330) | (9,912) | (2,811)
Earnings (loss) before income taxes | (1,144) | (1,501) | (4,567) | (4,382)
Domestic Operations | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 36,134 | 29,531 | 111,593 | 89,128
Intersegment revenues | 52 | 194 | 1,498 | 539
Earnings (loss) before income taxes | 417 | (255) | 1,006 | (2,559)
International Operations | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 24,687 | 11,102 | 53,915 | 30,029
Intersegment revenues | 3,458 | 1,136 | 8,414 | 2,272
Earnings (loss) before income taxes | $ 2,787 | $ 869 | $ 5,737 | $ 2,111

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