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Property, Plant and Equipment, Net (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Property, Plant and Equipment, net (Textual)      
Depreciation $ 674,847 $ 532,213  
Property, Plant and Equipment, Net 44,464,272   $ 38,908,503
Dalian manufacturing facilities [Member]      
Property, Plant and Equipment, net (Textual)      
Property, Plant and Equipment, Net $ 27,199,506   $ 21,749,145