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Note 8. Geographical Information (Tables)
9 Months Ended
Sep. 30, 2016
Segment Reporting [Abstract]  
Revenue based on geographic region

The following tables set forth revenues by domestic versus international regions:

 

   Three months ended  Nine months ended
   September 30,  September 30,
Geographic Region  2016  2015  2016  2015
North America  $2,508,532   $2,293,272   $8,057,020   $7,331,427 
Europe   364,451    493,833    1,227,326    1,605,849 
Total  $2,872,983   $2,787,105    9,284,346   $8,937,276