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3. Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Summary Of Significant Accounting Policies Tables  
Assumptions
Assumptions   2012     2011  
Risk-free rate     0.77 %     2.12 %
Annual rate of dividends     ––       ––  
Historical volatility     103.02 %     92.91 %
Expected life   6.7 years     6.0 years