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Cash and Cash Equivalents and Restricted Cash (Tables) | 12 Months Ended
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Dec. 31, 2017
Cash and Cash Equivalents [Abstract] |
Schedule of Cash and Cash Equivalents | Cash and cash equivalents were held in the following geographic regions:
| December 31,
(In thousands) | 2017 |  | 2016
United States | $ | 10,489 |  |  | $ | 3,277 |
People's Republic of China ("PRC") | 23,283 |  |  | 22,142 |
Asia (excluding the PRC) | 1,405 |  |  | 5,260 |
Europe | 18,071 |  |  | 19,630 |
South America | 9,190 |  |  | 302 |
Total cash and cash equivalents | $ | 62,438 |  |  | $ | 50,611 |

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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