Income Taxes (Schedule of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2020	Sep. 24, 2019
Income Tax Disclosure [Abstract]
Total benefit computed by applying statutory federal rate	$ (2,922)	$ (1,079)
State income tax, net of federal tax benefit	(51)	(153)
FICA/WOTC tax credits	(550)	(702)
Effect of change in valuation allowance	763	1,787
Permanent differences	2,510	87
Other	250	60
Provision for income taxes