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Leases - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 27, 2019
Jun. 24, 2021
Jun. 25, 2020
Jun. 28, 2019
Operating Leased Assets [Line Items]        
Operating lease right-of-use assets   $ 3,484 $ 4,351  
Operating lease, liability   $ 3,533 $ 4,366  
Rental expense under operating leases agreements $ 1,981      
Gross rental income $ 1,978      
Accounting Standards Update 2016-02 [Member]        
Operating Leased Assets [Line Items]        
Operating lease right-of-use assets       $ 5,361
Operating lease, liability       $ 5,320
Minimum [Member]        
Operating Leased Assets [Line Items]        
Discount rate       4.20%
Maximum [Member]        
Operating Leased Assets [Line Items]        
Discount rate       5.80%
Remaining lease term   5 years 2 months 12 days