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Note 10. Segment and Geographic Information (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   
Three Months
 
   
Ended March 31,
 
   
2013
   
2012
 
North America
  $ 5,253     $ 5,672  
Europe, Middle East and Africa (EMEA)
    1,212       1,001  
Latin America
    591       772  
Asia
    961       432  
    $ 8,017     $ 7,877