Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 2)

v3.19.1
Fair Value Measurements (Details 2) - Fair Value, Inputs, Level 3 [Member] - Warrant Liability [Member]
Mar. 31, 2019
$ / shares
Dec. 31, 2018
$ / shares
Common Stock Price | $ / shares $ 1.99 $ 3.42
Term (Years) [Member]    
Warrants and Rights Outstanding, Measurement Input 4.02 4.27
Volatility [Member]    
Warrants and Rights Outstanding, Measurement Input 59 58
Risk-free rate of interest [Member]    
Warrants and Rights Outstanding, Measurement Input 2.22 2.58
Dividend Yield [Member]    
Warrants and Rights Outstanding, Measurement Input 0.0 0.0