Discontinued Operations (Statement of Operations Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Discontinued Operations and Disposal Groups [Abstract]
Net sales		$ 6,637
Cost of sales		6,625
Selling, general and administrative expenses		2,242
Restructuring and other charges		1
Interest expense, net		7
Other expense, net		238
Loss from discontinued operations		(2,476)
Gain on sale of discontinued operations		2,031
Loss from discontinued operations before income taxes		(445)
Income tax expense		1,372
Loss from discontinued operations, net of taxes	$ 0	$ (1,817)
Discontinued operations per share - basic	$ 0.00	$ (0.21)
Discontinued operations per share - diluted	$ 0.00	$ (0.18)