Discontinued Operations (Statement of Operations Information) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 0	$ 12,716,000	$ 0	$ 26,444,000
(Loss) income from discontinued operations before income taxes	(82,000)	1,201,000	94,000	3,436,000
Income tax (benefit) expense on discontinued operations	(32,000)	1,088,000	36,000	1,978,000
Gain on sale of discontinued operations	714,000	0	1,559,000	0
Gain on sale of discontinued operations, tax expense	500,000		1,000,000
Income from discontinued operations, net of taxes	$ 664,000	$ 113,000	$ 1,617,000	$ 1,458,000
Discontinued operations per share - basic	$ 0.01	$ 0.00	$ 0.02	$ 0.02
Discontinued operations per share - diluted	$ 0.01	$ 0.00	$ 0.02	$ 0.02