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12. Stockholders' Equity (Deficiency) (Details 4) (Stock Incentive Plan To Non Employees)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Stock Incentive Plan To Non Employees
   
Expected life (years) minimum 2 years 8 months 12 days 0 years
Expected life (years) maximum 5 years 0 years
Expected volatility minimum 44.20% 0.00%
Expected volatility maximum 50.00% 0.00%
Weighted-average volatility 47.40% 0.00%
Risk-free interest rate, Minimum 0.37% 0.00%
Risk-free interest rate, Maximum 0.60% 0.00%
Dividend yield 0.00% 0.00%