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Series A Redeemable Convertible Preferred Stock Series A Redeemable Convertible Preferred Stock (Reconciliation Table) (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]    
Beginning Balance $ 445,838 $ 336,862
Total loss recognized in earnings 52,248 108,976
Ending Balance $ 498,086 $ 445,838