Geographic Information, Product Groups and Customer Concentration - Long-lived Tangible Assets and Total Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Jul. 01, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Year Ended	$ 137,438	$ 114,333
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Year Ended	61,845	49,843
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Year Ended	23,126	25,010
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Year Ended	20,112	8,174
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Year Ended	14,956	11,057
Malaysia
Revenues from External Customers and Long-Lived Assets [Line Items]
Year Ended	8,651	10,521
Rest of world
Revenues from External Customers and Long-Lived Assets [Line Items]
Year Ended	$ 8,748	$ 9,728