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Income Taxes - Income Tax Expenses for Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Loss before tax	$ (3,968)	$ (678)	$ (3,747)
Applicable tax rate	25.00%	25.00%	0.00%
Computed expected tax expense	(992)	(170)
Effect on non-PRC entities not subject to income tax	957	167
Effect on non-deductible cost	2
Valuation allowance		3
Actual income tax benefit	$ (33)

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Effective income tax rate reconciliation computed tax expense.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

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