Income Taxes Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Current
Federal	$ (78)	$ (287)	$ (178)
State	109	107	(116)
Total current	31	(180)	(294)
Deferred
Federal	(277)	(385)	(434)
State	(66)	(92)	(103)
Total deferred	(343)	(477)	(537)
Income tax provision (benefit)	$ (312)	$ (657)	$ (831)

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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