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Note C - Fair Values of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Warrants issued Under October and November 2013 PI SPA (Note O2c)
       
Fair value at January 1, 2016
  $
7,478
 
Gain on derivative
   
(7,478
)
Value at December 31, 2016 (expired)
  $
-
 
         
Warrant issued under September 2015 SPA (Note I)
       
Fair value at January 1, 2016
  $
96,806
 
Gain on derivative
   
(4,607
)
Transfer grant date fair value to additional paid-in-capital
   
(92,199
)
Value at December 31, 2016
  $
-
 
Total warrant balance, December 31, 2016
  $
-