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Note O - Equity (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
 
 
Total
Warrants
 
 
Weighted
average
exercise
price
 
 
Weighted
average
remaining
life
(in years)
 
 
Aggregate
intrinsic
value
 
                                 
Outstanding, as of January 1, 2014
    19,334,579     $ 0.52       2.79          
                                 
Granted
    11,962,501       0.30                  
Exercised
    (150,000
)
    0.20                  
Forfeited
    (7,974,999
)
    0.50                  
Expired
    (125,000
)
    0.60                  
Repurchased
    (4,000,000
)
    0.60                  
Outstanding, as of December 31, 2014
    19,047,081       0.37       3.91        
Granted
    1,408,333       0.26                  
Exercised
                           
Forfeited
                           
Expired
                           
Outstanding, as of December 31, 2015
    20,455,414       0.37       3.02        
Vested or expected to vest at December 31, 2015
    20,455,414       0.37       3.02        
Exercisable at December 31, 2015
    20,311,664     $ 0.37       3.01