CCA Acquisitions - Additional Information (Detail) - USD ($)		12 Months Ended
	Mar. 28, 2014	Jun. 27, 2015	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013	Jul. 01, 2012
Business Acquisition [Line Items]
Purchase Price	$ 9,200,000			$ 8,900,000
Performance-based contingent consideration		$ 300,000
Acquired receivables, fair value		2,000,000	$ 2,000,000
Acquired intangible assets		$ 2,800,000	2,800,000
Amortization expense related to intangible assets			$ 668,000	743,000	$ 1,000,000
Acquisition related cost				576,000
Pro Forma [Member]
Business Acquisition [Line Items]
Pro forma acquisition related cost						$ 700,000
Minimum [Member]
Business Acquisition [Line Items]
Amortization Period Of Intangible Assets			6 months
Maximum [Member]
Business Acquisition [Line Items]
Amortization Period Of Intangible Assets			10 years
Combustion Components Associates, Inc [Member]
Business Acquisition [Line Items]
Amortization expense related to intangible assets			$ 100,000	$ 100,000