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Stock-Based Compensation (Details 1)
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Summary of assumptions used to value stock options granted to employees    
Annual dividend yield      
Expected life (years) 4 years 3 months 18 days 3 years 9 months 18 days
Risk-free interest rate 0.65%  
Expected volatility 154.00%  
Minimum [Member]
   
Summary of assumptions used to value stock options granted to employees    
Risk-free interest rate   0.55%
Expected volatility   186.00%
Maximum [Member]
   
Summary of assumptions used to value stock options granted to employees    
Risk-free interest rate   0.57%
Expected volatility   187.00%