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Income Taxes (Narrative) (Detail) - USD ($) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 27, 2020 | Jun. 29, 2019 | Jun. 30, 2018 | Jul. 01, 2017
Income Tax Disclosure [Abstract] |  |  |  |
Tax Credit Carryforwards | $ 8,800,000 |  |  |
Toll Tax Liability | 800,000 |  |  |
Toll Tax Liability, Change in Amount | 400,000 |  |  |
Other Tax Expense (Benefit) | 1,300,000 |  |  |
Current Income Tax Expense (Benefit) | 1,300,000 |  |  |
Estimated Federal And State Income Taxes And Potential Withholding Taxes | 800,000 |  |  |
Effect of repatriation of foreign earnings, net | 7,800,000 |  |  |
Deferred Tax Assets, Tax Credit Carryforwards, Research | $ 8,800,000 |  |  |
Remaining Contractual Term Of Tax Credit Expiration Date | 20 years |  |  |
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax | $ 347,000 |  |  |
Previously unrecognized tax benefits | $ 2,863,000 | $ 4,099,000 | $ 4,011,000 | $ 3,947,000

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 + Details
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