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Goodwill and Intangible Assets (Aggregate Amortization Expense by Fiscal Year) (Detail) - USD ($)
$ in Thousands
Mar. 30, 2019
Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]    
2019 (1) $ 76  
2020 303  
2021 303  
2022 51  
Total amortization expense $ 733 $ 3,726