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Organization and Significant Accounting Policies - Contract Estimates (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Oct. 27, 2018 | Oct. 27, 2018 | Oct. 26, 2019
Organization and Significant Accounting Policies |  |  |
Material adjustment to any one contract | $ 0 | $ 0 |
Amount of revised aggregate impact of adjustments in contract estimates on revenue related to performance obligations satisfied or partially satisfied in previous periods | $ 976,000 | $ 976,000 | $ 1,118,000

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