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Intangible Assets (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Dec. 31, 2016
Intangible Assets (Textual)        
Amortization expense $ 6,716 $ 15,338 $ 52,676 $ 62,104