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Income Tax (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Schedule of reconciles U.S. statutory rates to effective tax rate        
U.S. statutory rates (21.00%) 34.00% (21.00%) 34.00%
Tax rate difference - current provision (3.80%) (9.60%) (3.70%) (9.20%)
Other (0.70%) 5.10% 2.00% (2.60%)
Permanent differences 0.60% 0.00% 3.90% 0.10%
Valuation allowance on PRC NOL 7.00% 15.10% 11.40% 20.50%
Valuation allowance on US NOL 0.80% 2.30% 1.80% 0.80%
Tax (benefit) per financial statements (17.10%) 47.00% (5.90%) 43.60%