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Note 2 - Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Inventory, Current [Table Text Block]
   
December 31, 2012
   
March 31, 2013
 
Raw materials
  $ 43,395     $ 44,635  
Finished goods (see Note 4)
    10,590       7,423  
Total inventory
  $ 53,985     $ 52,058