XML 62 R26.htm IDEA: XBRL DOCUMENT v2.4.1.9
8. Derivative liability (Tables)
12 Months Ended
Dec. 31, 2014
Derivative Liability [Abstract]  
Schedule of derivative liabilities
   Derivative Liabilities, Fair Value of Warrants 
   January 15   December 31, 
   2013   2012 
Risk-free interest rate   0.12%    0.02% 
Expected volatility   92%    165% 
Expected life (in years)   0.75 - 1.00    0.04 
Expected dividend yield   0%    0% 
Fair Value:          
2009 Warrants   3,441,752    3,221,138 
Total Fair Value  $3,441,752   $3,221,138