Discontinued Operations (Details) (USD $)	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Discontinued Operations [Abstract]
Net sales	$ 0	$ 800,000
Production margin	0	(1,000,000)
Expenses	0	100,000
Loss from operations	0	(1,100,000)
Benefit for taxes on income	0	(400,000)
Loss from discontinued operations, net of tax	$ 8,000	$ (736,000)