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Segment Information and Concentrations (Tables)
9 Months Ended
Sep. 30, 2012
Notes to Financial Statements  
Revenues by geographic areas
  

Three Months Ended

September 30,

 

Nine Months Ended

September 30,

   2012  2011  2012  2011
Revenues:                    
  United States  $1,971,957   $2,933,846   $6,450,535   $8,760,905 
  Europe   494,343    1,077,564    2,884,395    3,056,444 
  Asia and rest of world   330,054    669,966    1,452,685    1,256,080 
     Total revenues  $2,796,354   $4,681,376   $10,787,615   $13,073,429 
Major customers
  

Three Months Ended

September 30,

 

Nine Months Ended

September 30,

   2012  2011  2012  2011
ScanSource, Inc.   24%   16%   21%   14%
Ingram Micro Inc.   19%   12%   18%   14%
BlueStar   16%   *    *    * 
Epocal Inc.   *    10%   *    13%
Schedule of major customers as a percentage of net accounts receivable
   September 30,  December 31,
   2012  2011
Company A   27%   33%
Company B   15%   10%
Company C   22%   * 
Company D   *    11%