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Property, Plant and Equipment, Net (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Property, Plant and Equipment (Textual)        
Property, plant and equipment, disposals $ 4,770 $ 11,824 $ 11,164 $ 18,554
Depreciation expense $ 562,722 $ 377,828 $ 1,691,049 $ 938,416