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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 24, 2021
Jun. 25, 2020
Jun. 27, 2019
Jun. 28, 2018
IncomeTaxDisclosure [Line Items]        
Unrecognized tax benefits and accrued interest and penalties long-term $ 321 $ 204    
Total gross amounts of unrecognized tax benefits $ 326 $ 203 $ 240 $ 207
Illinois [Member]        
IncomeTaxDisclosure [Line Items]        
Year of tax returns audit 2017 2018 2019 2020      
California [Member]        
IncomeTaxDisclosure [Line Items]        
Year of tax returns audit 2018 2019 2020      
United States [Member]        
IncomeTaxDisclosure [Line Items]        
Year of tax returns audit 2017 2018 2019 2020