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Note C - Fair Values of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Fair Value Inputs, Assets, Quantitative Information [Table Text Block]
   
2015
 
Risk free interest rate
  0.54% - 1.70%  
Expected term
  0.82 - 4.73  
Expected dividends
    0    
Volatility of stock price
  84.5% - 114.9%  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Warrants issued Under October and November 2013 PI SPA (Note N2b)
       
Fair value at January 1, 2015
    43,227  
Gain on derivative
    (35,749
)
Value at December 31, 2015
    7,478  
         
Warrant issued under September 2015 SPA (Note H)
       
Fair value at January 1, 2015
    -  
Fair value at issuance
    92,199  
Loss on derivative
    4,607  
Value at December 31, 2015
    96,806  
Balance, December 31, 2015
  $ 104,284