Stock-Based Compensaiton (Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number outstanding December 31, 2013 (in shares)	159,517	236,059
Weighted average remaining contractual life (in years)	1 year	1 year
Weighted average exercise price (in dollars per share)	$ 20.12	$ 18.49
Option Exercisable One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number outstanding December 31, 2013 (in shares)	72,082
Weighted average remaining contractual life (in years)	1 year
Weighted average exercise price (in dollars per share)	$ 15.89
Option Exercisable Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number outstanding December 31, 2013 (in shares)	66,224
Weighted average remaining contractual life (in years)	2 years
Weighted average exercise price (in dollars per share)	$ 22.29
Option Exercisable Four [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number outstanding December 31, 2013 (in shares)	21,211
Weighted average remaining contractual life (in years)	4 years
Weighted average exercise price (in dollars per share)	$ 27.70