Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Mar. 29, 2014	Jun. 27, 2015	Jun. 28, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income tax expense (benefit)	$ 817	$ (12)		$ 1,134	$ 575
Increase (decrease) in long-term income taxes payable				$ 72	$ (1,203)
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income tax expense (benefit)			$ (300)
Increase (decrease) in deferred tax assets			(300)
Increase (decrease) in long-term income taxes payable			$ (600)