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Other Intangible Assets, Other than Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2012
Intangible Assets, Net (Excluding Goodwill) [Abstract] |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | December 31, 2011 |
|  | Gross carrying amount |  |  | Weighted average amortization period |  |  | Accumulated amortization |
|  | (in thousands) |
Amortized intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Technology |  | $ | 6,339 |  |  |  | 7 years |  |  |  | 4,495 |
Customer relationship |  |  | 8,100 |  |  |  | 7 years |  |  |  | 5,689 |
Patents |  |  | 842 |  |  |  | 6 years |  |  |  | 603 |
Total |  | $ | 15,281 |  |  |  |  |  |  |  | 10,787 |
|  | December 31, 2012 |
|  | Gross carrying amount |  |  | Weighted average amortization period |  |  | Accumulated 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 |  |  |  |  |  |  |  |  |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&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 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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