Share-Based Compensation (Details) (Stock Options, USD $)	9 Months Ended
	Sep. 30, 2012
Stock Options
Stock options outstanding
Balance at the beginning of the period (in shares)	27,595
Terminated/Cancelled (in shares)	(16,224)
Balance at the end of the period (in shares)	11,371
Exercisable at the end of the period (in shares)	11,371
Stock options, weighted average exercise price
Balance at the beginning of the period (in dollars per share)	$ 28.64
Terminated/Cancelled (in dollars per share)	$ 33.94
Balance at the end of the period (in dollars per share)	$ 21.09
Exercisable at the end of the period (in dollars per share)	$ 21.09