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Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Intangible Assets, Net (Excluding Goodwill) [Abstract] |
Schedule of Net Intangible Assets | Net intangible assets as of December 31, 2017 are as follows:
|  |  |  |  | December 31 |
|  |  |  |  | 2016 |  |  | 2017 |
|  | Useful life |  |  | US$ thousands |
Original cost: |  |  |  |  |  |  |  |  |
Current technology |  |  | 3 |  |  |  | 3,833 |  |  |  | 3,844 |
Customer relationships |  |  | 3 |  |  |  | 1,937 |  |  |  | 1,937 |
|  |  |  |  |  |  | 5,770 |  |  |  | 5,781 |
Accumulated amortization: |  |  |  |  |  |  |  |  |  |  |  |
Current technology |  |  |  |  |  |  | 1,930 |  |  |  | 3,181 |
Customer relationships |  |  |  |  |  |  | 916 |  |  |  | 1,553 |
|  |  |  |  |  |  | 2,846 |  |  |  | 4,734 |
Intangible assets, Net: |  |  |  |  |  |  |  |  |  |  |  |
Current technology |  |  |  |  |  |  | 1,903 |  |  |  | 663 |
Customer relationships |  |  |  |  |  |  | 1,021 |  |  |  | 384 |
|  |  |  |  |  |  | 2,924 |  |  |  | 1,047 |

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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=66006027&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=66006027&loc=d3e16265-109275 + Details
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