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Stock-Based Compensation - Fair Value Assumptions (Details)
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Expected life 3 years 1 month 24 days 4 years 10 months 24 days
Volatility 174.20% 163.40%
Risk free interest rate 0.30% 1.96%
Dividend yield 0.00% 0.00%