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Note J - Deferred Revenue (Tables)
12 Months Ended
Dec. 31, 2012
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]
   
2012
   
2011
 
             
Current Portion
           
Maintenance contracts
  $ 496,055     $ 335,246  
Customer deposit
    12,465       122,500  
Fully deferred systems, installation and acceptance revenue
    -       69,346  
      508,520       527,092  
Long-Term Portion
               
Maintenance contracts
    -       1,000  
                 
Total
  $ 508,520     $ 528,092