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Note I - Deferred Revenue (Tables)
12 Months Ended
Dec. 31, 2013
Deferred Revenue Disclosure [Abstract]  
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]
   

2013

   

2012

 
                 

Maintenance contracts

  $ 528,160     $ 496,055  

Customer deposit

    -       12,465  
                 

Total

  $ 528,160     $ 508,520