Debt - Textual (Details) - Revolving credit facility - Line of credit	12 Months Ended
	Oct. 03, 2020 USD ($)	Sep. 28, 2019 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 80,000,000.0
Outstanding borrowings	$ 500,000	$ 4,500,000
Fixed charge ratio, Covenant 1	1.0	1.0
Fixed charge ratio, Covenant 2	1.15	1.15
London interbank offered rate (LIBOR)
Debt Instrument [Line Items]
Interest rate, spread on variable rate	2.50%