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Income Tax (Details 1) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Schedule of provision for income tax expenses        
Income tax expense - current $ 463,046 $ 325,428 $ 921,041 $ 664,651
Income tax expense - deferred (477,715) 40,235 (427,551) 117,315
Total income tax expense $ (14,669) $ 365,663 $ 493,490 $ 781,966