Annual report pursuant to Section 13 and 15(d)

Convertible Notes (Details 3)

v3.8.0.1
Convertible Notes (Details 3) - USD ($)
$ / shares in Units, $ in Thousands
Aug. 05, 2015
Dec. 31, 2014
Oct. 31, 2014
Dec. 31, 2017
Class of Warrant or Right [Line Items]        
Assumed exercise price (in dollars per share)       $ 8.45
Warrants [Member]        
Class of Warrant or Right [Line Items]        
Fair market value of shares $ 5.00 $ 2.18 $ 1.77  
Assumed exercise price (in dollars per share) $ 3.00 $ 3.00 $ 3.00  
Term (years) 4 years 3 months 4 years 10 months 2 days 5 years  
Volatility 80.00% 80.00% 80.00%  
Annual rate of dividends 0.00% 0.00% 0.00%  
Discount rate 1.55% 1.65% 1.62%  
Call option value $ 3.51 $ 1.14 $ 0.88  
Warrant shares issued 251,187 220,268 220,268  
Warrants fair value $ 881 $ 276 $ 212