Income Taxes (Narrative) (Detail) - USD ($)	12 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Income Tax Disclosure [Abstract]
Tax Credit Carryforwards	$ 8,200,000
Tax Credit Carryforwards, R&D	7,400,000
Income Tax Reconciliation Additional Repatriation Of Foreign Earnings	13,400,000
Estimated Federal And State Income Taxes And Potential Withholding Taxes	6,600,000
Undistributed Earnings of Foreign Subsidiaries	15,000,000
Unrecognized Deferred Tax Liability On Undistributed Earnings	2,300,000
Advance Pricing Agreement Settlement	400,000
Advance Pricing Agreement Revenue Transfer	$ 1,800,000
Remaining Contractual Term Of Tax Credit Expiration Date	20 years
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	$ 726,000
Unrecognized Tax Benefits	$ 3,947,000	$ 3,760,000	$ 3,446,000	$ 3,072,000