Restructuring Costs and Other, Net (Details) (USD $)	1 Months Ended	12 Months Ended					3 Months Ended	12 Months Ended
	Mar. 31, 2013 employees	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 2011 Leipzig Closure and Other Associated Costs [Member]	Dec. 31, 2013 2013 Workforce Reductions [Member]	Sep. 30, 2011 2011 Leipzig Closure [Member] employees	Dec. 31, 2012 2011 Leipzig Closure [Member]	Dec. 31, 2012 Other Associated Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges								$ 2,200,000
Restructuring Costs			300,000
Expected costs						370,000
Number of positions eliminated due to restructuring	66						10
Additional restructuring charges								200,000
Employee serverance and other personnel benefits:
Restructuring Reserve, Beginning of Period		1,009,000	1,615,000		1,009,000			697,000	918,000
Expenses, Net		6,358,000	229,000		0	6,358,000		0	229,000
Noncash		(1,298,000)	0		(1,009,000)	(289,000)		0
Cash		(5,699,000)	(835,000)	(300,000)	0	(5,699,000)		(697,000)	(138,000)
Restructuring Reserve, End of Period		$ 370,000	$ 1,009,000	$ 1,615,000	$ 0			$ 0	$ 1,009,000