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Segment Information and Foreign Operations (Tables) | 3 Months Ended
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Mar. 31, 2013
Segment Information and Foreign Operations [Abstract] |
Product Information | The following table represents revenue amounts (in thousands) by product type:
|  | Three Months Ended March 31, |
|  | 2013 |  |  | 2012 |
Product type: |  |  |  |  |  |
GaAs substrates |  | $ | 11,723 |  |  | $ | 12,231 |
InP substrates |  |  | 1,849 |  |  |  | 1,451 |
Ge substrates |  |  | 2,551 |  |  |  | 2,630 |
Raw materials and other |  |  | 6,257 |  |  |  | 7,174 |
Total |  | $ | 22,380 |  |  | $ | 23,486 |
Revenue reported for products shipped to customers in the corresponding geographic region | The following table represents revenue amounts (in thousands) reported for products shipped to customers in the corresponding geographic region:
|  | Three Months Ended March 31, |
|  | 2013 |  |  | 2012 |
Geographical information: |  |  |  |  |  |
China |  | $ | 6,029 |  |  | $ | 5,774 |
Europe (primarily Germany) |  |  | 4,689 |  |  |  | 4,565 |
Taiwan |  |  | 3,779 |  |  |  | 2,046 |
North America (primarily the United States) |  |  | 3,469 |  |  |  | 5,167 |
Japan |  |  | 2,282 |  |  |  | 2,189 |
Asia Pacific (excluding China, Japan and Taiwan) |  |  | 2,132 |  |  |  | 3,745 |
Total |  | $ | 22,380 |  |  | $ | 23,486 |
Long-lived assets by geographic region | Long-lived assets consist primarily of property, plant and equipment, and are attributed to the geographic location in which they are located. Long-lived assets by geographic region were as follows (in thousands):
|  | As of |
|  | March 31, |  |  | December 31, |
|  | 2013 |  |  | 2012 |
Long-lived assets by geographic region: |  |  |  |  |  |
North America |  | $ | 337 |  |  | $ | 430 |
China |  |  | 37,140 |  |  |  | 36,805 |
|  | $ | 37,477 |  |  | $ | 37,235 |

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