Stock-Based Compensation (Schedule of Non-Qualified Stock Options Activity) (Details) (Non Qualified Options, USD $)	3 Months Ended
	Mar. 31, 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	0
Exercised	0
Canceled	0
Outstanding at March 31, 2013	89,700
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Granted, Exercise Price, in dollars per share	$ 0.00	[1]
Exercised, Exercise Price, in dollars per share	$ 0.00	[1]
Cancelled, Exercise Price, in dollars per share	$ 0.00	[1]
Outstanding at March 31, 2013, Exercise Price, in dollars per share	$ 19.91	[1]
Exercisable at March 31, 2013	38,100
Exercisable at March 31, 2013, Exercise Price, in dollars per share	$ 21.91	[1]
Available for grant at March 31, 2013	322,750

[1] Weighted Averages