Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

v3.8.0.1
Stockholders' Equity (Details)
12 Months Ended
Dec. 31, 2017
$ / shares
Exercise Price $ 5.73
Maximum [Member]  
Risk-free interest rate 2.38%
Expected term in years 10 years
Expected volatility 96.65%
Minimum [Member]  
Risk-free interest rate 1.81%
Expected term in years 5 years 6 months
Expected volatility 77.30%