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Stock-Based Compensation (Details 2)
12 Months Ended
Dec. 31, 2012
Summary of assumptions used to value stock options granted to employees and directors  
Annual dividend yield   
Minimum [Member]
 
Summary of assumptions used to value stock options granted to employees and directors  
Expected life (years) 3 years 9 months 18 days
Risk-free interest rate 0.43%
Expected volatility 169.00%
Maximum [Member]
 
Summary of assumptions used to value stock options granted to employees and directors  
Expected life (years) 4 years 3 months 18 days
Risk-free interest rate 0.62%
Expected volatility 187.00%