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9. Fair Value of Warrants
 3 Months Ended
Mar. 31, 2013
Notes to Financial Statements  
9. Fair Value of Warrants

The following tables summarize the assumptions used in computing the fair value of liability warrants subject to fair value accounting at the date of issue during the year ended March 31, 2013:

Expected dividend yield   0%
Risk-free interest rate   0.77% - 0.84% 
Expected volatility   75.55%
Expected Life (years)   4.23 - 5.00 
Exercise price  $0.001 
Company stock price   $0.51 - $0.82 

 

The following tables summarize the assumptions used in computing the fair value of liability warrants subject to fair value accounting at March 31, 2013:

Expected dividend yield   0%
Risk-free interest rate   0.77%
Expected volatility   75.55%
Expected Life (years)   4.23 - 4.75 
Exercise price  $0.001 
Company stock price  $0.51