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Income Taxes (Details 2)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Schedule of reconciliation of statutory rates to Company's effective tax rate    
PRC Statutory rate 25.00% 25.00%
Effect of different tax jurisdiction 0.00% 0.50%
Effect of expenses not deductible for PRC tax purposes 13.30% 0.40%
Change in valuation allowance 0.00% (1.80%)
Effective income tax rate 11.70% 24.10%