Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Sep. 28, 2021	Sep. 29, 2020	Sep. 24, 2019	Sep. 25, 2018	Sep. 26, 2017	Sep. 27, 2016	Sep. 30, 2015	Sep. 30, 2012	Sep. 25, 2011
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards			$ 11,197,000	$ 3,525,000					$ 1,523,000
Operating loss carry-forwards utilization limit								$ 160,000
General business tax credits	$ 4,353,000	$ 4,353,000	$ 4,353,000	$ 4,353,000	$ 4,353,000	$ 4,353,000	$ 4,353,000
Minimum [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration year			2025
General business tax credits expiration year			2034
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration year			2038
General business tax credits expiration year			2040