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Income Taxes (Details 1)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Abstract]
HK statutory income tax rate	16.50%	16.50%	16.50%
PRC statutory income tax rate difference	(1.50%)	(1.50%)	8.50%
Effect of additional deduction on R&D expense and salary for disabled workers	127.75%	(7.69%)	(0.84%)
Effect of expenses not deductible for tax purposes	1.10%	0.40%	0.57%
Effect of change of tax rate for temporary difference			(1.40%)
Valuation allowance recognized with respect to the loss in subsidiaries	19.83%	(0.03%)	13.28%
Others		0.49%
Total	91.82%	8.17%	36.61%

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

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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 valuation allowance for deferred tax assets.

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