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Revenue Disaggregation of Revenue (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 28, 2020 | Mar. 30, 2019 | Mar. 28, 2020 | Mar. 30, 2019
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | $ 111,455 | $ 107,954 | $ 333,462 | $ 358,463
Over-Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 110,048 | 106,859 | 329,192 | 350,512
Point-in-Time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | $ 1,407 | $ 1,095 | $ 4,270 | $ 7,951

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