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Income Tax (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 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 (3.70%) (10.50%) (3.30%) (9.00%)
Other 7.40% (9.10%) 8.00% (7.00%)
Permanent differences 9.00% 0.20% 10.60% 0.10%
Valuation allowance on PRC NOL 5.80% 42.00% 36.70% 39.80%
Valuation allowance on US NOL 1.60% 0.10% 3.60% 0.10%
Tax (benefit) per financial statements (0.90%) 56.70% 34.60% 58.00%