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Property, Plant and Equipment (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)        
Depreciation expense $ 677,395 $ 942,555 $ 2,212,731 $ 2,405,396