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Note 10. Stock Warrants (Tables)
9 Months Ended
Sep. 30, 2012
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
    2012     2011  
   
Warrants
   
Weighted
 Average
Exercise Price
   
Warrants
   
Weighted
 Average
Exercise Price
 
                         
Beginning balance
    1,235,877     $ 0.35       1,498,377     $ 0.36  
                                 
Stock warrants granted
    -       -       -       -  
Stock warrants expired
    -       -       -       -  
Stock warrants exercised
    (881,331 )     0.01       (262,500 )     0.41  
                                 
Ending balance
    354,546     $ 1.21       1,235,877     $ 0.35