Loans (Nonaccrual Loans By Segment) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Nonaccrual Loans By Major Loan Type [Line Items]
Total	$ 4,887	$ 7,361	$ 7,866
Commercial [Member]
Nonaccrual Loans By Major Loan Type [Line Items]
Total	1,553	3,360	4,058
Real Estate Construction One-To- Four Family [Member]
Nonaccrual Loans By Major Loan Type [Line Items]
Total	810
Real Estate Construction Other [Member]
Nonaccrual Loans By Major Loan Type [Line Items]
Total		2,355	1,568
Real Estate Term Owner Occupied [Member]
Nonaccrual Loans By Major Loan Type [Line Items]
Total		924	1,305
Real Estate Term Non-Owner Occupied [Member]
Nonaccrual Loans By Major Loan Type [Line Items]
Total	193	229	420
Real Estate Term Other [Member]
Nonaccrual Loans By Major Loan Type [Line Items]
Total	2,021	324	336
Consumer Secured By 1st Deed Of Trust [Member]
Nonaccrual Loans By Major Loan Type [Line Items]
Total	175		1
Consumer Other [Member]
Nonaccrual Loans By Major Loan Type [Line Items]
Total	$ 135	$ 169	$ 178