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Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Professional fees $ 103,976 $ 69,406
Payroll and related 484,316 406,925
Severance payments to former officer 79,203 158,406
Other 69,239 92,181
Accrued expenses $ 736,734 $ 726,918