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Segments and Major Customers (Details 3) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Major Customer Disclosure |  |  |  |
Revenues | $ 57,919 | $ 56,215 | $ 124,785 | $ 119,078
South Korea |  |  |  |
Major Customer Disclosure |  |  |  |
Revenues | 22,502 | 21,468 | 44,527 | 44,715
USA |  |  |  |
Major Customer Disclosure |  |  |  |
Revenues | 15,106 | 15,280 | 40,675 | 31,469
Japan |  |  |  |
Major Customer Disclosure |  |  |  |
Revenues | 12,261 | 15,902 | 26,869 | 33,471
Europe |  |  |  |
Major Customer Disclosure |  |  |  |
Revenues | 5,432 | 943 | 7,560 | 2,072
Canada |  |  |  |
Major Customer Disclosure |  |  |  |
Revenues | 1,862 | 1,872 | 3,648 | 3,851
Asia-Other |  |  |  |
Major Customer Disclosure |  |  |  |
Revenues | $ 756 | $ 750 | $ 1,506 | $ 3,500

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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