Earnings Per Share ("EPS") (Details 1) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Effect of revision on earnings per share for all periods affected
Basic income per common share	$ 0.24	$ 0.78	$ 0.22	$ 1.42	$ 0.62
Diluted income per common share	$ 0.24	$ 0.72	$ 0.22	$ 1.35	$ 0.59
As Previously Reported [Member]
Effect of revision on earnings per share for all periods affected
Basic income per common share		$ 0.64		$ 1.27	$ 0.48
Diluted income per common share		$ 0.60		$ 1.21	$ 0.46
Adjustment [Member]
Effect of revision on earnings per share for all periods affected
Basic income per common share		$ 0.14		$ 0.15	$ 0.14
Diluted income per common share		$ 0.12		$ 0.14	$ 0.13