Income Taxes Effective Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory federal income tax provision (benefit)	$ (9,249)	$ 2,089	$ 2,717
State income taxes (benefit), net of federal provision (benefit)	(1,655)	325	572
Employment tax credits	(2,938)	(3,059)	(1,947)
Non-deductible expenses	1,374	415	336
Federal rate change	0	0	(762)
Miscellaneous	345	73	(312)
Provision (benefit) for income taxes	$ (12,123)	$ (157)	$ 604

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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