Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v2.4.0.8
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

 
 
Six Months Ended
 
 
June 30, 2013
 
June 30, 2012
Risk-free interest rate
 
0.33%
 
0.31%
Expected life (in years)
 
3.5
 
3.5
Expected volatility
 
49.80%
 
57.62%
Dividend yield
 
—%
 
—%