Income Taxes (Income Tax Reconciliation, Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 25, 2016	Jun. 27, 2015	Dec. 26, 2015
Income Tax Disclosure [Abstract]
Effective income tax rate	38.50%	36.70%
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount	$ 335
Deferred Tax Assets, Net	$ 7,212		$ 4,726