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PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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PREPAID EXPENSES AND OTHER CURRENT ASSETS [Abstract] |  |
Prepaid expenses | $ 1,135 | $ 274
Value added tax refundable | 2,213 | 3,377
Interest receivables | 462 | 350
Others | 162 | 287
Prepaid expenses and other current assets | $ 3,972 | $ 4,288

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