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Property and Equipment, Net (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Continuing operations [Member]      
Property and Equipment, Net (Textual)      
Depreciation and amortization $ 467,929 $ 974,432 $ 869,073
Discontinued operations [Member]      
Property and Equipment, Net (Textual)      
Depreciation and amortization   $ 51,056 $ 281,202