Property, Plant and Equipment, net (Detail) - USD ($) $ in Thousands	Jan. 01, 2017	Jul. 03, 2016
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 76,120	$ 73,595
Less accumulated depreciation	(43,219)	(40,275)
Total property, plant and equipment, net	32,901	33,320
Land and land improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	1,429	1,429
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	27,693	27,660
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	43,956	43,134
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 3,042	$ 1,372