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Goodwill and Acquired Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2016
Intangible Assets Acquired from Acquisition | Intangible assets: The intangible assets acquired from the Company’s acquisition of FCI and Centronix in 2007 and Shannon Systems in 2015 are as follows:
|  | December 31 |
|  | 2015 |  |  | 2016 |
|  | US$ |  |  | US$ |
|  | Cost |  |  | Accumulated Impairment |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Cost |  |  | Accumulated Impairment |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Developed technology |  |  | 8,381 |  |  |  | — |  |  |  | (1,051 | ) |  |  | 7,330 |  |  |  | 8,381 |  |  |  | — |  |  |  | (3,154 | ) |  |  | 5,227 |
Goodwill Disclosure |
|  | December 31 |
|  | 2015 |  |  | 2016 |
|  | US$ |  |  | US$ |
|  | Cost |  |  | Accumulated Impairment |  |  | Foreign Currency Adjustment |  |  | Net Carrying Amount |  |  | Cost |  |  | Accumulated Impairment |  |  | Foreign Currency Adjustment |  |  | Net Carrying Amount |
Goodwill |  |  | 99,504 |  |  |  | (30,808 | ) |  |  | (36 | ) |  |  | 68,660 |  |  |  | 99,504 |  |  |  | (30,808 | ) |  |  | (40 | ) |  |  | 68,656 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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