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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill [Table Text Block] | The following table presents the changes in the carrying amount of our goodwill for 2017 (in thousands):
|  | Total
Balance as of December 31, 2016 |  | $ | 5,577 |
Goodwill acquired |  | 1,015 |
Currency translation |  | 95 |
Balance as of September 30, 2017 |  | $ | 6,687 |
Schedule of Intangible Assets and Goodwill [Table Text Block] | Intangible assets, carried at cost less accumulated amortization and amortized on a straight-lined basis, were as follows (in thousands):
|  | Weighted Average |  | September 30, 2017
|  | Amortization Life in Years |  | Cost |  | Accumulated Amortization |  | Net
Patents |  | 10 |  | $ | 16,603 |  |  | $ | 10,699 |  |  | $ | 5,904 |
Customer contracts |  | 10 |  | 11,406 |  |  | 4,797 |  |  | 6,609 |
Non-contractual customer relationships |  | 9 |  | 55,080 |  |  | 4,944 |  |  | 50,136 |
Trademarks |  | 4 |  | 425 |  |  | 425 |  |  | — |
Trade name |  | 15 |  | 7,310 |  |  | 975 |  |  | 6,335 |
Developed technology |  | 11 |  | 81,801 |  |  | 5,654 |  |  | 76,147 |
Total definite-lived intangible assets |  |  |  | $ | 172,625 |  |  | $ | 27,494 |  |  | $ | 145,131 |
Indefinite-lived IPR&D |  |  |  | 7,207 |  |  | — |  |  | 7,207 |
Total intangible assets |  |  |  | $ | 179,832 |  |  | $ | 27,494 |  |  | $ | 152,338 |
|  | Weighted Average |  | December 31, 2016
|  | Amortization Life in Years |  | Cost |  | Accumulated Amortization |  | Net
Patents |  | 10 |  | $ | 14,423 |  |  | $ | 9,326 |  |  | $ | 5,097 |
MCDA contract * |  | 10 |  | 8,571 |  |  | 8,571 |  |  | — |
Customer contracts |  | 9 |  | 5,319 |  |  | 4,512 |  |  | 807 |
Non-contractual customer relationships |  | 15 |  | 7,080 |  |  | 590 |  |  | 6,490 |
Trademarks |  | 4 |  | 425 |  |  | 425 |  |  | — |
Trade name |  | 15 |  | 7,310 |  |  | 609 |  |  | 6,701 |
Developed technology |  | 10 |  | 3,797 |  |  | 509 |  |  | 3,288 |
Total |  |  |  | $ | 46,925 |  |  | $ | 24,542 |  |  | $ | 22,383 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | As of September 30, 2017 estimated annual amortization for our intangible assets for each of the next five years is approximately (in thousands):
Remainder of 2017 |  | $ | 4,218 |
2018 |  | 16,353 |
2019 |  | 15,938 |
2020 |  | 15,798 |
2021 |  | 15,716 |
Thereafter |  | 77,108 |
Total |  | $ | 145,131 |

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