Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Schedule Of Changes In Number Of Outstanding Stock Options Under Director Plan, Stock Plan And 2011 Incentive Plan) (Details)

v3.4.0.3
Stock-Based Compensation (Schedule Of Changes In Number Of Outstanding Stock Options Under Director Plan, Stock Plan And 2011 Incentive Plan) (Details) - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Stock-Based Compensation [Abstract]    
Options, Outstanding 721,924  
Options, Awarded 187,989  
Options, Exercised  
Options, Forfeited  
Options, Outstanding 909,913 721,924
Options, Exercisable 345,042  
Options, Expected to vest 909,913  
Weighted average exercise price per share, Outstanding $ 11.70  
Weighted average exercise price per share, Awarded $ 6.93  
Weighted average exercise price per share, Exercised  
Weighted average exercise price per share, Forfeited  
Weighted average exercise price per share, Outstanding $ 10.72 $ 11.70
Weighted average exercise price per share, Exercisable 11.80  
Weighted average exercise price per share, Expected to vest $ 10.72  
Options, Outstanding - Weighted average remaining contractual term 5 years 1 month 10 days 4 years 10 months 21 days
Options, Exercisable - Weighted average remaining contractual term 3 years 6 months 18 days  
Options, Expected to vest - Weighted average remaining contractual term 5 years 1 month 10 days