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Note O - Stock Options (Detail) - Option Activity (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Outstanding, as of December 31 3,262,272 4,404,412 4,410,530
Outstanding, as of December 31 (in Dollars per share) $ 0.16 $ 0.22 $ 0.25
Outstanding, as of December 31 4 years 76 days    
Outstanding, as of December 31 (in Dollars) $ 2,325    
Vested or expected to vest at December 31, 2012 2,972,404    
Vested or expected to vest at December 31, 2012 (in Dollars per share) $ 0.16    
Vested or expected to vest at December 31, 2012 4 years 14 days    
Vested or expected to vest at December 31, 2012 (in Dollars) 2,325    
Exercisable at December 31, 2012 2,230,594    
Exercisable at December 31, 2012 (in Dollars per share) $ 0.18    
Exercisable at December 31, 2012 3 years 156 days    
Exercisable at December 31, 2012 (in Dollars) $ 2,325    
Granted 600,000 845,000  
Granted (in Dollars per share) $ 0.09 $ 0.14  
Forfeited (530,001) (210,000)  
Forfeited (in Dollars per share) $ 0.09 $ 0.14  
Expired (1,212,139) (641,118)  
Expired (in Dollars per share) $ 0.30 $ 0.36  
1999 Stock Option Plan [Member]
      
Outstanding, as of December 31 500,000 500,000 500,000
2004 Stock Option Plan [Member]
      
Outstanding, as of December 31 2,762,272 2,831,836 2,580,689
Outstanding, as of December 31 10 years    
Granted 600,000 845,000  
Forfeited (164,623) (210,000)  
Expired (504,941) (383,853)  
Non Plan [Member]
      
Outstanding, as of December 31   1,072,576 1,329,841
Forfeited (365,378)    
Expired (707,198) (257,265)