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BALANCE SHEET DETAILS - Components of Prepaid Expense and Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Balance Sheet Related Disclosures [Abstract]
Prepaid value-added tax	$ 2,134	$ 1,133
Retirement insurance - foreign employees	75	1,432
Other current assets	3,058	1,996
Prepaid expenses and other current assets	$ 5,267	$ 4,561

- Definition

Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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