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Property and Equipment (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Property and Equipment (Textual)        
Depreciation expenses $ 9,124 $ 12,925 $ 18,244 $ 27,838