Stock-Based Compensation (Schedule of Non-Qualified Stock Options Activity) (Details) (Non Qualified Options, USD $)	6 Months Ended
	Jun. 30, 2013
Non Qualified Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of year	89,700
Granted	25,000
Exercised	0
Canceled	0
Outstanding at June 30, 2013	114,700
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Granted, Exercise Price, in dollars per share	$ 42.70	[1]
Exercised, Exercise Price, in dollars per share	$ 0.00	[1]
Cancelled, Exercise Price, in dollars per share	$ 0.00	[1]
Outstanding at June 30, 2013, Exercise Price, in dollars per share	$ 24.87	[1]
Exercisable at June 30, 2013	57,900
Exercisable at June 30, 2013, Exercise Price, in dollars per share	$ 19.89	[1]
Available for grant at June 30, 2013	293,526

[1] Weighted Averages