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Note G - Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2012
Intangible Assets Disclosure [Text Block]  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   

2012

   

2011

 
   

Gross

Carrying

Amount 

   

Accumulated

Amortization 

   

Net Carrying

Amount 

   

Gross

Carrying

Amount 

   

Accumulated

Amortization 

   

Net Carrying

Amount 

 
                                                 

Patents and patents pending

  $ 287,248     $ (91,337

)

  $ 195,911     $ 287,248     $ (80,068

)

  $ 207,180  
                                                 

Total

  $ 287,248     $ (91,337

)

  $ 195,911     $ 287,248     $ (80,068

)

  $ 207,180