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Income Taxes (Narrative) (Detail) - USD ($) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 29, 2019 | Jun. 30, 2018 | Jul. 01, 2017 | Jul. 02, 2016
Income Tax Disclosure [Abstract] |  |  |  |
Tax Credit Carryforwards | $ 9,100,000 |  |  |
Tax Credit Carryforwards, R&D | $ 9,000,000.0 |  |  |
Accumulated unremitted earnings tax rate for cash repatriation | 15.50% |  |  |
Accumulated unremitted earnings tax rate for non liquid asset | 8.00% |  |  |
Toll Tax Liability | $ 800,000 |  |  |
Other Tax Expense (Benefit) | 1,300,000 |  |  |
Current Income Tax Expense (Benefit) | 1,300,000 |  |  |
Toll Tax Liability, Change in Amount | 400,000 |  |  |
Estimated Federal And State Income Taxes And Potential Withholding Taxes | 800,000 |  |  |
Effect of repatriation of foreign earnings, net | $ 7,800,000 |  |  |
Remaining Contractual Term Of Tax Credit Expiration Date | 20 years |  |  |
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax | $ 726,000 |  |  |
Unrecognized Tax Benefits | $ 4,099,000 | $ 4,011,000 | $ 3,947,000 | $ 3,760,000

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