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Note 5 - Inventory (Tables)
3 Months Ended
Mar. 31, 2016
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
 
March 31,
 
 
December 31,
 
 
 
2016
 
 
2015
 
                 
                 
Finished goods and licenses
  $ 357,283     $ 246,475  
Fabricated assemblies
    101,570       102,170  
Total inventory
  $ 458,853     $ 348,645