Discontinued Operations Statement of Operations Information (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Discontinued Operations [Line Items]
Net sales	$ 3,552,000	$ 5,689,000	$ 7,605,000	$ 20,703,000
Income (loss) from discontinued operations before income taxes	(1,121,000)	185,000	(1,499,000)	894,000
Income tax expense (benefit) on discontinued operations	175,000	68,000	35,000	346,000
Loss on sale of discontinued operations, net of taxes	0	(304,000)	0	(5,319,000)
Income (loss) from discontinued operations, net of taxes	(1,296,000)	(187,000)	(1,534,000)	(4,771,000)
Discontinued operations per share - basic	$ (0.02)	$ 0.00	$ (0.03)	$ (0.08)
Discontinued operations per share - diluted	$ (0.02)	$ 0.00	$ (0.03)	$ (0.08)
Discontinued Operations [Abstract]
Tax effect on income (loss) from discontinued operations		200,000		3,400,000
Income tax expense (benefit)	3,088,000	314,000	6,286,000	(1,678,000)
Prior Discontinued Operations [Member]
Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of taxes				1,800,000
Discontinued Operations [Abstract]
Tax effect on income (loss) from discontinued operations				$ 1,200,000