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v3.19.1

Segment Reporting - Net Sales and Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 27, 2019 | Jan. 26, 2019 | Oct. 27, 2018 | Jul. 28, 2018 | Apr. 28, 2018 | Jan. 27, 2018 | Oct. 28, 2017 | Jul. 29, 2017 | Apr. 27, 2019 | Apr. 28, 2018 | Apr. 29, 2017
Net sales: |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 127,755 | $ 115,069 | $ 172,692 | $ 154,188 | $ 138,177 | $ 130,316 | $ 169,309 | $ 172,728 | $ 569,704 | $ 610,530 | $ 586,539
Long-lived assets: |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 65,314 |  |  |  | 68,059 |  |  |  | 65,314 | 68,059 | 66,749
United States |  |  |  |  |  |  |  |  |  |  |
Net sales: |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 460,099 | 501,646 | 485,044
Long-lived assets: |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 59,192 |  |  |  | 61,206 |  |  |  | 59,192 | 61,206 | 62,425
Outside United States |  |  |  |  |  |  |  |  |  |  |
Net sales: |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 109,605 | 108,884 | 101,495
Long-lived assets: |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | $ 6,122 |  |  |  | $ 6,853 |  |  |  | $ 6,122 | $ 6,853 | $ 4,324

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