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Share-Based Compensation (Share-Based Payment Plan Expense) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Share-based compensation $ 196 $ 146 $ 389 $ 291