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Segment Disclosure - Net Sales and Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jan. 30, 2016 | Jan. 31, 2015 | Jan. 30, 2016 | Jan. 31, 2015 | May. 02, 2015
Net sales: |  |  |  |  |
Net sales | $ 123,816 | $ 118,123 | $ 431,705 | $ 457,856 |
Long-lived assets: |  |  |  |  |
Long-lived assets | 73,378 |  | 73,378 |  | $ 72,844
United States |  |  |  |  |
Net sales: |  |  |  |  |
Sales | 101,200 | 90,127 | 347,278 | 370,168 |
Long-lived assets: |  |  |  |  |
Long-lived assets | 68,640 |  | 68,640 |  | 67,882
Outside U.S. |  |  |  |  |
Net sales: |  |  |  |  |
Sales | 22,616 | $ 27,996 | 84,427 | $ 87,688 |
Long-lived assets: |  |  |  |  |
Long-lived assets | $ 4,738 |  | $ 4,738 |  | $ 4,962

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