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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