Income Taxes (Income Tax Reconciliation, Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2017	Jun. 25, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Effective income tax rate	38.60%	38.50%
Stock-based compensation	$ 164
Deferred Tax Assets, Net	$ 7,083		$ 7,610