Income Taxes (Schedule of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 28, 2021	Sep. 29, 2020
Income Tax Disclosure [Abstract]
Total expense (benefit) computed by applying statutory federal rate	$ 3,527	$ (2,922)
State income tax, net of federal tax benefit	260	(51)
FICA/WOTC tax credits	(587)	(550)
Effect of change in tax law	(2,875)
Effect of change in valuation allowance	1,967	763
Permanent differences	(2,338)	2,510
Other	52	250
Provision for income taxes	$ 6