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Issuance of Common Stock, Warrants and Convertible Preferred Stock (Details 1)
12 Months Ended
Dec. 31, 2016
$ / shares
Volatility 75.00%
Risk-free interest rate 1.17%
Expected term 3 years 4 months 17 days
Expected dividend yield
Warrant [Member]  
Volatility 75.00%
Risk-free interest rate 1.03%
Expected term 3 years
Expected dividend yield
Fair value of common stock $ 1.68