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Stock Options (Details 1) (Employee Stock Option [Member], USD $)
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average fair value of options granted (in dollars per share) $ 1.35 $ 1.89
Risk-free interest rate   0.76%
Expected life (years) 5 years  
Expected volatility factor 54.96% 67.37%
Expected dividends 0.00% 0.00%
Minimum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 1.53%  
Expected life (years)   5 years
Maximum [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 1.68%  
Expected life (years)   7 years