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Note 7 - Concentration of Revenue
9 Months Ended
Sep. 30, 2011
Concentration Risk Disclosure [Text Block]
7.
Concentration of Revenue  The following table indicates the percentage of consolidated revenue represented by each customer for any period in which such customer represented more than 10% of consolidated revenue.

   
Three Months Ended Sept. 30,
 
Nine Months Ended Sept. 30,
   (unaudited)
 
2011
 
2010
 
2011
 
2010
ChemFree Customer A
    22.0 %     34.1 %     26.8 %     32.2 %
ChemFree Customer B
    --       10.0 %     --       --  
ChemFree Customer C
    --       --       10.2 %     11.9 %
CoreCard Customer D
    28.4 %     --       11.3 %     --