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Goodwill and Other Intangible Assets
9 Months Ended
Sep. 30, 2014
Goodwill And Other Intangible Assets Disclosure [Abstract]  
Goodwill And Other Intangible Assets Disclosure [Text Block]

4. Goodwill and Other Intangible Assets

Intangible assets consist of the following:

Weighted
Average
September 30, 2014December 31, 2013Life (a)
(in thousands)
Amortizable intangible assets:GrossAccumulated AmortizationGrossAccumulated Amortization
Existing technology$ 13,136 $(11,244)$ 13,464 $(11,091) 3.7 Years
Trade names 6,065 (2,451) 6,178 (2,185) 10.2 Years
Distribution agreements/customer relationships 21,348 (10,392) 21,827 (9,447) 10.0 Years
Patents 267 (38) 271 (8) 4.4 Years
Total amortizable intangible assets 40,816 $(24,125) 41,740 $(22,731)
Indefinite-lived intangible assets:
Goodwill 35,938 36,605
Other indefinite-lived intangible assets 1,265 1,289
Total goodwill and other indefinite-lived intangible assets 37,203 37,894
Total intangible assets$ 78,019 $ 79,634
(a) Weighted average life as of September 30, 2014.

The change in the carrying amount of goodwill for the nine months ended September 30, 2014 is as follows:

(in thousands)
Balance at December 31, 2013$ 36,605
Effect of change in currency translation(667)
Balance at September 30, 2014$ 35,938

Intangible asset amortization expense was $0.6 million and $0.6 million for the three months ended September 30, 2014 and 2013, respectively. Intangible asset amortization expense was $1.8 million and $2.0 million for the nine months ended September 30, 2014 and 2013, respectively. Amortization expense of existing amortizable intangible assets is currently estimated to be $2.4 million for the year ending December 31, 2014, $2.2 million for the year ending December 31, 2015, $2.0 million for the year ending December 31, 2016, $1.8 million for the year ending December 31, 2017 and $1.6 million for the year ending December 31, 2018.