Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Income Taxes [Abstract]
Current, Federal	$ 11,779	$ 11,385	$ 10,630
Current, State	3,117	4,594	1,972
Deferred, Federal	6,636	6,059	(34,659)
Deferred, State	(871)	(2,640)	2,666
Provision for income taxes	$ 20,661	$ 19,398	$ (19,391)