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Segment Information (Tables)
9 Months Ended
Sep. 30, 2012
Segment Reporting [Abstract]  
Net revenue by geographic area

Net revenue is recorded in the geographic area in which the sale is originated. Information concerning principal geographic areas in which we operate is as follows (in thousands):
 
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2011
 
2012
 
2011
 
2012
Net revenue:
 
 
 
 
 
 
 
United States
$
47,197

 
$
47,737

 
$
146,910

 
$
149,169

Europe
11

 
3

 
70

 
12

Asia
597

 
483

 
1,826

 
1,348

Total net revenue
$
47,805

 
$
48,223

 
$
148,806

 
$
150,529