XML 32 R61.htm IDEA: XBRL DOCUMENT v2.4.0.8
Equity-Based Compensation Plans (Details) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Weighted-average fair values of the Company's stock options granted    
Weighted average fair value of options granted $ 5.07 $ 11.46
Expected volatility 60.00% 76.00%
Contractual life 7 years 7 years
Expected dividend yield 0.00% 0.00%
Minimum [Member]
   
Weighted-average fair values of the Company's stock options granted    
Risk-free interest rate 0.46% 0.31%
Expected life 3 years 4 months 24 days 3 years 4 months 24 days
Maximum [Member]
   
Weighted-average fair values of the Company's stock options granted    
Risk-free interest rate 0.46% 0.35%
Expected life 5 years 4 months 24 days 5 years 4 months 24 days