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Property, Plant and Equipment, Net (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment, Net (Textual)      
Depreciation expense $ 349,887 $ 252,957 $ 263,177
Pledged as collateral under loan arrangements $ 555,070 $ 533,935