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Taxes (Details 1) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Income before income tax expense from China $ 7,705,629 $ 11,136,874 $ 7,252,723
Loss before income tax expense from outside of China (1,557,492) (1,730,009) (797,287)
Total $ 6,148,137 $ 9,406,865 $ 6,455,436