Note 12 - Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 30, 2018
Federal	$ 8,779	$ 8,763	$ 275
State	(11)	1,171	875
Deferred	(4,665)	(2,003)	(17,378)
Income Tax Expense (Benefit), Total	$ 4,104	$ 7,931	$ (16,228)