Annual report pursuant to Section 13 and 15(d)

Warrants (Details)

v3.3.1.900
Warrants (Details) - Warrant [Member] - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Awards, Outstanding 21,964 [1] 21,964  
Number of Awards, Issued 1,983,673 0  
Number of Awards, Exercised (10,929) 0  
Number of Awards, Forfeited (11,035) 0  
Number of Awards, Outstanding 1,983,673 21,964 [1] 21,964
Weighted Average Exercise Price, Outstanding $ 4.52 [1] $ 4.52  
Weighted Average Exercise Price, Issued 9.18    
Weighted Average Exercise Price, Exercised 0.65    
Weighted Average Exercise Price, Forfeited 8.35    
Weighted Average Exercise Price, Outstanding $ 9.18 $ 4.52 [1] $ 4.52
Weighted Average Remaining Term in Years, Outstanding 5 years 3 months 25 days 1 year 2 months 16 days [1] 2 years 2 months 16 days
Weighted Average Remaining Term in Years, Issued 5 years 3 months 25 days    
[1] Does not include warrants convertible into common or preferred stock issued to holders of the Amended and Restated Notes of 2014 Notes.