Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2015	Dec. 30, 2014	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Tax benefits on options	$ 0	$ 253	$ 201
Increase in equity if realized	7,900
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 34,400	$ 22,500