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Convertible Preferred Stock, Stockholders' Deficit, and Warrants (Details 3) - USD ($)
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Exercise price $ 5.12 $ 5
Series A Warrants    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Series A Warrants outstanding 422,838  
Fair value per warrant $ 7.72  
Calculated aggregate fair value $ 3,264,309  
Value of common stock $ 5.00  
Exercise price $ 8  
Expected term (years) 7 years 1 month 6 days  
Risk free rate 2.20%  
Volatility 48.00%  
Dividend yield 0.00%  
Issue Dates Aggregated Weighted Average | Series A Warrants    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Series A Warrants outstanding 422,838  
Fair value per warrant $ 9.58  
Calculated aggregate fair value $ 4,050,706  
Value of common stock $ 5.73  
Exercise price $ 8.00  
Expected term (years) 7 years 2 months 12 days  
Risk free rate 2.30%  
Volatility 47.00%  
Dividend yield 0.00%