Provision for Taxes (Details 3) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 26, 2015
Deferred Tax Assets, Net, Classification [Abstract]
Deferred income tax asset - current	$ 1,283	$ 1,543
Deferred income tax asset (liability) - long-term	(6,441)	(7,200)
Deferred Tax Liabilities, Net	$ (5,158)	$ (5,657)