Enterprise-Wide Disclosures (Net Sales And Long-Lived Assets (Property, Plant, And Equipment) By Geographic Area) (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jul. 02, 2016	Apr. 02, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Segment Reporting Information [Line Items]
Net sales	$ 123,905	$ 118,448	$ 116,403	$ 126,209	$ 120,429	$ 112,915	$ 114,311	$ 86,342	$ 484,965	$ 433,997	$ 305,394
Long-lived assets	27,925				26,974				27,925	26,974	23,596
Domestic (U.S.)
Segment Reporting Information [Line Items]
Net sales									347,552	301,891	197,700
Long-lived assets	11,406				8,969				11,406	8,969	2,888
Mexico
Segment Reporting Information [Line Items]
Long-lived assets	15,756				17,156				15,756	17,156	19,577
China
Segment Reporting Information [Line Items]
Long-lived assets	$ 763				$ 849				763	849	1,131
Foreign
Segment Reporting Information [Line Items]
Net sales									$ 137,413	$ 132,106	$ 107,694