XML 44 R33.htm IDEA: XBRL DOCUMENT v3.4.0.3
Stock Based Compensation, by Exercise Price Range (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2016
USD ($)
$ / shares
shares
Dec. 31, 2015
$ / shares
shares
Jul. 24, 2015
$ / shares
Share based compensation, shares authorized under significant ranges of outstanding stock option plans in period [Abstract]      
Closing price of the common stock (in dollars per share)     $ 2.75
Stock Options [Member]      
Share based compensation, shares authorized under significant ranges of outstanding stock option plans in period [Abstract]      
Number of Options (in shares) | shares 14,322,005    
Weighted-Average Remaining Contractual Life 8 years 1 month 20 days    
Weighted-Average Exercise Price (in dollars per share) $ 3.05    
Number of Options Exercisable (in shares) | shares 8,942,921    
Weighted-Average Remaining Contractual Life 7 years 5 months 26 days    
Weighted-Average Exercise Price, Options Exercisable (in dollars per share) $ 3.36    
The aggregate intrinsic value of outstanding options | $ $ 4.2    
Aggregate intrinsic value of options vested | $ $ 2.5    
Closing price of the common stock (in dollars per share) $ 2.68    
Warrants [Member]      
Share based compensation, shares authorized under significant ranges of outstanding stock option plans in period [Abstract]      
Warrants outstanding (in shares) | shares 8,359,618 7,225,472  
Weighted-average exercise price of warrants outstanding (in dollars per share) 3.96 4.28  
Range $1.75 - 2.00 [Member] | Stock Options [Member]      
Share based compensation, shares authorized under significant ranges of outstanding stock option plans in period [Abstract]      
Range of Exercise Prices, Lower Range (in dollars per share) $ 1.75    
Range of Exercise Prices, Upper Range (in dollars per share) $ 2.00    
Number of Options (in shares) | shares 1,274,500    
Weighted-Average Remaining Contractual Life 6 years 8 months 12 days    
Weighted-Average Exercise Price (in dollars per share) $ 1.83    
Number of Options Exercisable (in shares) | shares 1,274,500    
Weighted-Average Remaining Contractual Life 6 years 8 months 12 days    
Weighted-Average Exercise Price, Options Exercisable (in dollars per share) $ 1.83    
Range $2.01 - 2.50 [Member] | Stock Options [Member]      
Share based compensation, shares authorized under significant ranges of outstanding stock option plans in period [Abstract]      
Range of Exercise Prices, Lower Range (in dollars per share) 2.01    
Range of Exercise Prices, Upper Range (in dollars per share) $ 2.50    
Number of Options (in shares) | shares 8,565,558    
Weighted-Average Remaining Contractual Life 8 years 11 months 1 day    
Weighted-Average Exercise Price (in dollars per share) $ 2.32    
Number of Options Exercisable (in shares) | shares 3,734,284    
Weighted-Average Remaining Contractual Life 8 years 4 months 17 days    
Weighted-Average Exercise Price, Options Exercisable (in dollars per share) $ 2.30    
Range $2.51 - 4.00 [Member] | Stock Options [Member]      
Share based compensation, shares authorized under significant ranges of outstanding stock option plans in period [Abstract]      
Range of Exercise Prices, Lower Range (in dollars per share) 2.51    
Range of Exercise Prices, Upper Range (in dollars per share) $ 4.00    
Number of Options (in shares) | shares 1,058,407    
Weighted-Average Remaining Contractual Life 7 years 11 months 19 days    
Weighted-Average Exercise Price (in dollars per share) $ 2.86    
Number of Options Exercisable (in shares) | shares 917,574    
Weighted-Average Remaining Contractual Life 7 years 9 months 11 days    
Weighted-Average Exercise Price, Options Exercisable (in dollars per share) $ 2.86    
Range $4.01 - 32.55 [Member] | Stock Options [Member]      
Share based compensation, shares authorized under significant ranges of outstanding stock option plans in period [Abstract]      
Range of Exercise Prices, Lower Range (in dollars per share) 4.01    
Range of Exercise Prices, Upper Range (in dollars per share) $ 32.55    
Number of Options (in shares) | shares 3,423,540    
Weighted-Average Remaining Contractual Life 6 years 9 months 4 days    
Weighted-Average Exercise Price (in dollars per share) $ 5.39    
Number of Options Exercisable (in shares) | shares 3,016,563    
Weighted-Average Remaining Contractual Life 6 years 7 months 17 days    
Weighted-Average Exercise Price, Options Exercisable (in dollars per share) $ 5.47