Note 13 - Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Sep. 29, 2019
Federal	$ (2,431)	$ 8,779	$ 8,763
State	3,642	(10)	1,171
Deferred	6,004	(4,665)	(2,003)
Income Tax Expense (Benefit), Total	$ 7,215	$ 4,104	$ 7,931