Discontinued Operations (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Discontinued Operations [Abstract]
Net sales									$ 1,600,000	$ 8,900,000	$ 11,900,000
Production margin									(2,100,000)	(2,900,000)	(2,000,000)
Expenses									500,000	700,000	800,000
Facility closure costs									5,900,000	0	0
Restructuring costs									0	0	900,000
Loss from operations									(8,500,000)	(3,600,000)	(3,700,000)
Benefit for taxes on income									(2,700,000)	(1,100,000)	(1,200,000)
Loss from discontinued operations, net of tax	$ 0	$ 0	$ (5,000,000)	$ (700,000)	$ (900,000)	$ (500,000)	$ (500,000)	$ (600,000)	$ (5,744,000)	$ (2,450,000)	$ (2,532,000)