v2.4.0.6
Earnings Per Share (Details Textual) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 331,800 853,780
Weighted Average Price of Antidilutive Securities Excluded from Computation of Earnings Per Share (in dollars per share) $ 28.50 $ 24.81