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Segment Reporting (Tables)
3 Months Ended
Mar. 31, 2013
Segment Reporting [Abstract]  
Revenues by Geographic Area, Based on Billing Location of Customer

Revenues by geographic area, based on the billing location of the customer, were as follows:

 

     Three Months Ended March 31,  
     2013      2012  

United States of America

   $ 11,978       $ 9,591   

International

     5,177         3,384   
  

 

 

    

 

 

 

Total revenues, net

   $ 17,155       $ 12,974   
  

 

 

    

 

 

 

Long-lived assets by geographic area were as follows:

 

     March 31,
2013
     December 31,
2012
 

United States of America

   $ 10,973       $ 8,839   

International

     353         385   
  

 

 

    

 

 

 

Total long-lived assets, net

   $ 11,326       $ 9,224