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12. Derivative Liabilities (Tables)
 6 Months Ended
Jun. 30, 2013
DerivativeLiabilitiesTablesAbstract  
Fair value assumptions schedule
Estimated fair value of underlying common stock     $0.03  
Remaining life in years     3.05 - 3.15  
Risk-free interest rate     0.35% - 0.38%  
Expected volatility     141% - 142%  
Dividend yield     –