Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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Name:	us-gaap_DeferredIncomeTaxExpenseBenefit
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Income Taxes, Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
PRC income tax
Current
Deferred