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Additional Paid-In Capital (Summary Of Option Activity) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 9 Months Ended 12 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Additional Paid-In Capital [Abstract]    
Number of options, Outstanding 3,092,500 3,195,000
Granted, Number of options (in shares) 400,000  
Number of options, Exercised (in shares) (7,500)  
Number of options, Expired (in shares) (495,000)  
Number of options, Exercisable (in shares) 2,792,500  
Weighted average exercise price per share, Outstanding (in dollars per share) $ 3.04 $ 3.27
Weighted average exercise price per option, Granted (in dollars per share) $ 3.16  
Weighted average exercise price per option, Exercised (in dollars per share) $ 2.88  
Weighted average exercise price per option, Expired (in dollars per share) $ 4.58  
Weighted average exercise price per share, Exercisable (in dollars per share) $ 3.01  
Weighted average remaining contractual term, Outstanding 2 years 7 months 17 days 2 years 8 months 23 days
Weighted average remaining contractual term, Exercisable 2 years 5 months 16 days  
Aggregate intrinsic value, Outstanding $ 2,395 $ 1,039
Aggregate intrinsic value, Exercisable $ 2,298