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Property, Plant and Equipment, Net (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Property, Plant and Equipment, Net (Textual)        
Property, plant and equipment, disposals $ 78,779 $ 4,770 $ 100,390 $ 11,164
Depreciation expense $ 596,010 $ 562,722 $ 1,719,393 $ 1,691,049