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Other Intangible Assets, Other than Goodwill | 12 Months Ended
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Dec. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract] |
Intangible Assets Disclosure [Text Block] |
| Note 8. | Other Intangible Assets, Other than Goodwill
|  | December 31, 2012 |
|  |  |  |  | Weighted |  |  |  |
|  | Gross |  | average |  |  |  |
|  | carrying |  | amortization |  | Accumulated |
|  | amount |  | period |  | amortization |
|  | (in thousands) |
Amortized intangible assets: |  |  |  |  |  |  |  |  |
Technology |  | $ | 11,774 |  | 7 years |  |  | 5,762 |
Customer relationship |  |  | 8,100 |  | 7 years |  |  | 6,847 |
Patents |  |  | 842 |  | 6 years |  |  | 686 |
Total |  | $ | 20,716 |  |  |  |  | 13,295 |
Unamortized intangible assets: |  |  |  |  |  |  |  |  |
In-process research and development |  | $ | 722 |  |  |  |  |  |
|  | December 31, 2013 |
|  |  |  |  | Weighted |  |  |  |
|  | Gross |  | average |  |  |  |
|  | carrying |  | amortization |  | Accumulated |
|  | amount |  | period |  | amortization |
|  | (in thousands) |
Amortized intangible assets: |  |  |  |  |  |  |  |  |
Technology |  | $ | 11,774 |  | 7 years |  |  | 7,430 |
Customer relationship |  |  | 8,100 |  | 7 years |  |  | 8,004 |
Patents |  |  | 842 |  | 6 years |  |  | 770 |
Total |  | $ | 20,716 |  |  |  |  | 16,204 |
Unamortized intangible assets: |  |  |  |  |  |  |  |  |
In-process research and development |  | $ | 722 |  |  |  |  |  |
Amortization expense for the years ended December 31, 2011, 2012 and 2013 was $2,180 thousand, $2,508 thousand and $2,909 thousand, respectively. Estimated amortization expense for the next five years is $953 thousand in 2014, and $783 thousand in 2015, 2016, 2017 and 2018.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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