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Stockholder's Deficit - Schedule of Weighted-average Assumptions Used in Black-Scholes Valuation Method (Details) - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Risk-free interest rate 1.60% 1.17%
Expected term (in years) 7 years 2 months 30 days 3 years 4 months 17 days
Expected dividend yield 0.00% 0.00%
Expected volatility 75.00% 75.00%
Warrant [Member]    
Risk-free interest rate 1.50% 1.03%
Expected term (in years) 3 years 3 years
Expected dividend yield 0.00% 0.00%
Expected volatility 75.00% 75.00%
Fair value of common stock $ 4.38 $ 5.04