Income Taxes Effective Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory federal income tax provision (benefit)	$ 7,867	$ (16,036)	$ (10,119)
State income taxes (benefit), net of federal provision (benefit)	1,681	(4,085)	(2,934)
Employment tax credits	(3,173)	(2,817)	(3,274)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	(2,111)	21,065	11,272
Non-deductible expenses	181	597	431
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount	310	684	127
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	0	0	(163)
Miscellaneous	(282)	(197)	(499)
Provision (benefit) for income taxes	$ 4,473	$ (789)	$ (5,159)