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Stock-Based Compensation (Schedule of Fair Value Assumptions used in valuing Stock Options) (Details) (Stock Options [Member])
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Stock Options [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Volatility 73.00%   
Risk-free interest rate, maximum 1.93%   
Expected term 6 years 3 months