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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 25, 2015 | Jun. 26, 2014 | Jun. 27, 2013
Income Tax Disclosure [Line Items] |  |  |
Net change in the total valuation allowance | $ 0 | $ (640) | $ 815
Total gross amounts of unrecognized tax benefits | 248 | 247 | $ 139
Unrecognized tax benefits and accrued interest and penalties long-term | $ 333 | $ 263 |
Federal [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Year of tax return currently under audit | 2014 |  |
Federal and State [Member] | Scenario, Forecast [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Total gross amounts of unrecognized tax benefits | $ 122 |  |
United States [Member] | Earliest Tax Year [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Year of tax return audit | 2012 |  |
Illinois [Member] | Earliest Tax Year [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Year of tax return audit | 2013 |  |
California [Member] | Earliest Tax Year [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Year of tax return audit | 2011 |  |

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