Discontinued Operations (Details) - Loss from discontinued operations, net of taxes - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 31, 2016	Dec. 31, 2015
Loss from discontinued operations, net of taxes [Abstract]
Net sales						$ 553
Cost of sales						772
Selling, general and administrative expenses						(144)
Other income						64
Loss from discontinued operations before income taxes						(11)
Income tax (benefit) expense
Loss from discontinued operations, net of taxes	$ (2)	$ 74	$ 35	$ (118)		$ (11)