Property, Plant and Equipment, net (Detail) - USD ($) $ in Thousands	Apr. 01, 2018	Jul. 02, 2017
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 83,976	$ 80,525
Less accumulated depreciation	(50,216)	(46,070)
Total property, plant and equipment, net	33,760	34,455
Land and land improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	1,439	1,439
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	28,082	28,121
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	51,968	46,502
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 2,487	$ 4,463