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Changes in Carrying Amount of Goodwill from Acquisition (Detail) - USD ($)
$ in Thousands
3 Months Ended
Sep. 28, 2018
Sep. 29, 2017
Goodwill [Line Items]    
Beginning Balance $ 3,828 $ 3,806
Foreign currency translation adjustment (6) 22
Ending Balance $ 3,822 $ 3,828