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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets, Net Of Amortization) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 17,130 $ 17,633
Less accumulated amortization (6,196) (5,075)
Intangible assets, net $ 10,934 $ 12,558
Weighted average useful life 14 years 10 months 24 days 14 years 9 months 18 days
Customer Lists And Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 14,026 $ 14,306
Less accumulated amortization (5,034) (4,121)
Intangible assets, net $ 8,992 $ 10,185
Weighted average useful life 15 years 3 months 18 days 15 years 3 months 18 days
Product Technologies [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 2,157 $ 2,380
Less accumulated amortization (633) (520)
Intangible assets, net $ 1,524 $ 1,860
Weighted average useful life 14 years 14 years 1 month 6 days
Core Technologies [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 947 $ 947
Less accumulated amortization (529) (434)
Intangible assets, net $ 418 $ 513
Weighted average useful life 10 years 10 years