Premises And Equipment (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Premises And Equipment [Abstract]
Depreciation of premises and equipment	$ 2.5	$ 2.5	$ 2.9
Total rental expense	$ 2.5	$ 2.6	$ 2.8