Goodwill and Intangible Assets (Schedule of Goodwill and Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 29, 2021	Sep. 29, 2020	Jun. 30, 2020	Sep. 29, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets, gross carrying amount	$ 3,950	$ 3,950
Accumulated Amortization	(40)	(28)
Intangible Assets, net carrying amount	3,910	3,922
Goodwill, gross carrying amount	5,150	5,150
Goodwill, Accumulated Amortization
Goodwill, net carrying amount	$ 5,150	$ 5,150	$ 5,150	$ 15,150