Loans And Allowance For Loan Losses (Recorded Investment In Impaired Loans And The Related Valuation Allowance) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010
Loans And Allowance For Loan Losses [Abstract]
Recorded Investment	$ 17,598	$ 15,445	$ 14,110
Valuation Allowance	$ 4,211	$ 3,152	$ 2,633

Amount of allowance for credit losses related to recorded investment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5212-111524

-Subparagraph (a)(3)

Name:	us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant