Income Taxes Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Current
Federal	$ (396)	$ 277	$ 1,081
State	34	(261)	(292)
Total current	(362)	16	789
Deferred
Federal	(3,003)	(641)	232
State	(257)	(89)	32
Total deferred	(3,260)	(730)	264
Income tax provision (benefit)	$ (3,622)	$ (714)	$ 1,053

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

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