Goodwill And Other Intangible Assets (Schedule Of Gross Carrying Values, Accumulated Amortization, And Approximate Amortization Periods Of Definite Lived Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 14,020	$ 14,020
Accumulated amortization	2,961	2,677
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	4,236	4,348
Accumulated amortization	2,384	2,414
Amortization Period	17 years	17 years
Distribution And Manufacturing Rights And Know-How [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,559	3,559
Accumulated amortization	776	714
Amortization Period	15 years	15 years
Customer Lists And Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,370	3,370
Accumulated amortization	632	572
Non-Compete Agreement [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	381	381
Accumulated amortization	276	267
Amortization Period	10 years	10 years
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	470	202
Accumulated amortization	$ 185	$ 171
Minimum [Member] | Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	11 years	11 years
Minimum [Member] | Customer Lists And Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	13 years	13 years
Minimum [Member] | Other [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	1 year	1 year
Maximum [Member] | Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	16 years	16 years
Maximum [Member] | Customer Lists And Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	17 years	17 years
Maximum [Member] | Other [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	5 years	3 years