Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies-Share-based Compensation (Details)

v2.4.0.8
Summary of Significant Accounting Policies-Share-based Compensation (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
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation $ 707 $ 665 $ 1,425 $ 1,336
Stock Options
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-vested stock options unrecognized compensation expense $ 4,867   $ 4,867  
Non-vested stock options unrecognized compensation expense, weighted-average period of recognition     3 years 26 days