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Goodwill and Intangible Assets (Estimated Aggregate Future Amortization Expense) (Details) - USD ($)
$ in Thousands
Sep. 24, 2019
Sep. 25, 2018
Goodwill and Intangible Assets Disclosure [Abstract]    
2020 $ 28  
2021 17  
2022 6  
Net Carrying Amount $ 51 $ 35