Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
Stock-Based Compensation (Schedule Of Changes In Number Of Outstanding Stock Options Under Director Plan And Stock Plan) (Details) (USD $)
 6 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Stock-Based Compensation [Abstract]    
Options, Outstanding 311,153  
Options, Awarded 160,302  
Options, Exercised (15,000)  
Options, Forfeited (74,738)  
Options, Outstanding 381,717 311,153
Options, Exercisable at June 30, 2013 189,734  
Options, Expected to vest June 30, 2013 375,963  
Weighted average exercise price per share, Outstanding $ 12.05  
Weighted average exercise price per share, Awarded $ 10.10  
Weighted average exercise price per share, Exercised $ 7.35  
Weighted average exercise price per share, Forfeited $ 11.42  
Weighted average exercise price per share, Outstanding $ 11.54 $ 12.05
Weighted average exercise price per share, Exercisable at June 30, 2013 $ 11.64  
Weighted average exercise price per share, Expected to vest June 30, 2013 $ 11.53  
Options, Outstanding - Weighted average remaining contractual term 5 years 3 months 11 days 4 years 11 months 23 days
Options, Exercisable at June 30, 2013 - Weighted average remaining contractual term 4 years 4 months 10 days  
Options, Expected to vest June 30, 2013 - Weighted average remaining contractual term 5 years 3 months 4 days