Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Summary Of Employee And Non-Employee Transactions) (Details)

v3.4.0.3
Stock-Based Compensation (Summary Of Employee And Non-Employee Transactions) (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
$ / shares
shares
Dec. 31, 2015
USD ($)
$ / shares
shares
Stock-Based Compensation [Abstract]    
Number of options, Oustanding | shares 12,590,982  
Number of options, Granted | shares 3,337,090  
Number of options, Oustanding | shares 15,928,072 12,590,982
Weighted average exercise price, Outstanding | $ / shares $ 0.83  
Weighted average exercise price, Granted | $ / shares 0.35  
Weighted average exercise price, Outstanding | $ / shares $ 0.73 $ 0.83
Weighted average remaining contractual term, Outstanding 7 years 2 months 12 days 6 years 9 months 18 days
Aggregate intrinsic value, Outstanding | $ $ 10,600 $ 26,500
Number of options, Exercisable | shares 8,040,304  
Weighted average exercise price, Exercisable | $ / shares $ 0.88  
Weighted average remaining contractual term, Exercisable 5 years 3 months 18 days  
Aggregate intrinsic value, Exercisable | $ $ 10,600