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Note 9. Segment and Geographic Information (Tables)
9 Months Ended
Sep. 30, 2012
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   
Three Months Ended
September 30,
   
Nine Months Ended
September 30,
 
   
2012
   
2011
   
2012
   
2011
 
North America
  $ 5,181     $ 5,884     $ 16,001     $ 17,967  
Europe, Middle East and Africa (EMEA)
    671       644       2,480       3,355  
Latin America
    794       550       2,276       1,438  
Asia
    602       392       2,052       720  
    $ 7,248     $ 7,470     $ 22,809     $ 23,480