Goodwill And Other Intangible Assets (Other intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Product licenses and designs
Finite-Lived Intangible Assets [Line Items]
Carrying Value	$ 15,506	$ 15,522
Accumulated Amortization	6,372	6,065
Net Carrying Value	9,134	9,457
Weighted Avg Amortization Period	10 years 1 month 0 days	10 years 1 month 0 days
Patents and trademarks
Finite-Lived Intangible Assets [Line Items]
Carrying Value	4,777	4,777
Accumulated Amortization	2,849	2,772
Net Carrying Value	1,928	2,005
Weighted Avg Amortization Period	14 years 0 months 0 days	13 years 11 months 11 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Carrying Value	3,168	3,168
Accumulated Amortization	2,613	2,499
Net Carrying Value	$ 555	$ 669
Weighted Avg Amortization Period	6 years 10 months 9 days	6 years 10 months 9 days