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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        
Amount capitalized to internal use software $ 1 $ 1 $ 1 $ 1
Total share-based compensation costs 368 188 655 374
Cost of revenues [Member]
       
Share-based Compensation        
Share-based compensation costs 17 12 34 25
Sales and marketing [Member]
       
Share-based Compensation        
Share-based compensation costs 142 41 251 76
Technology support [Member]
       
Share-based Compensation        
Share-based compensation costs 68 57 125 116
General and administrative [Member]
       
Share-based Compensation        
Share-based compensation costs 142 79 246 158
Share-based Compensation Costs [Member]
       
Share-based Compensation        
Share-based compensation costs $ 369 $ 189 $ 656 $ 375