Prepaid Expenses and Other Current Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Staff advances	$ 303	$ 243
Prepayment for products	812	785
Advance to OEMs	11,479	3,662
Rental and other deposits	591	1,069
VAT recoverable	2,610	2,189
Loan to third parties		1,469
Receivable from an agent	1,545	6,318
Prepayment for share repurchase	10,048
Others	198	82
Prepaid expenses and other current assets	27,586	15,817
Less: provision	(570)
Total	$ 27,016	$ 15,817

Amount of consideration paid in advance to manufacturer.

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Amount of consideration paid in loan to third parties.

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The amount for prepayment for share repurchase.

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Amount of provision.

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The amount owed to the reporting entity by counterparties in securitized loan transactions.

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For an unclassified balance sheet, amounts due from an Entity employee, not to include stockholders or officers.

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

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

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

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Amount of consideration paid in advance for supplies that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities.

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