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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Jun. 29, 2017 | Jun. 30, 2016 | Jun. 25, 2015 | Jun. 26, 2014
Income Tax Disclosure [Line Items] |  |  |  |
Net change in the total valuation allowance | $ 0 | $ (4) |  |
Total gross amounts of unrecognized tax benefits | 174 | 24 | $ 248 | $ 247
Unrecognized tax benefits and accrued interest and penalties long-term | $ 173 | $ 62 |  |
United States [Member] | Tax Year 2015 [Member] |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Year of tax returns audit | 2015 |  |  |
United States [Member] | Tax Year 2016 [Member] |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Year of tax returns audit | 2016 |  |  |
Illinois [Member] | Tax Year 2015 [Member] |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Year of tax returns audit | 2015 |  |  |
Illinois [Member] | Tax Year 2016 [Member] |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Year of tax returns audit | 2016 |  |  |
California [Member] | Earliest Tax Year [Member] |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Year of tax return currently under audit | 2013 |  |  |
California [Member] | Latest Tax Year [Member] |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Year of tax return currently under audit | 2014 |  |  |
California [Member] | Tax Year 2015 [Member] |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Year of tax returns audit | 2015 |  |  |
California [Member] | Tax Year 2016 [Member] |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Year of tax returns audit | 2016 |  |  |

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- Definition Amount recognized for uncertainty in income taxes classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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