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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2013
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]  
Schedule of stock-based employee compensation expense included in statements of comprehensive income
   
Three Months Ended
September 30,
    
Nine Months Ended
September 30,
  
   
2013
    
2012
    
2013
    
2012
  
                         
       Cost of services
   $ 12     $ 2     $ 23     $ 14  
       Research and development
     26       6       53       68  
       Selling and marketing
     5       -       10       134  
       General and administrative
     174       13       359       70  
       Income from discontinued operations
     -       -       -       13  
Stock-based compensation expense 
   $ 217     $ 21     $ 445     $ 299