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Income Taxes - Components of Loss Before Income Taxes (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
U.S. operations $ (6,622,695) $ (2,096,939)
Foreign operations (75,218) (105,574)
Loss before income taxes $ (6,697,913) $ (2,202,513)