Loans (Summary Of Loans Receivable Outstanding) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Loans [Line Items]
Total loans	$ 538,992	$ 597,816
Commercial [Member]
Loans [Line Items]
Total loans	30,420	39,327
Agriculture [Member]
Loans [Line Items]
Total loans	4,965	6,147
Consumer Installment Loans [Member]
Loans [Line Items]
Total loans	31,200	38,522
All Other Loans [Member]
Loans [Line Items]
Total loans	187	218
Real Estate [Member]
Loans [Line Items]
Total loans	472,220	513,602
Real Estate [Member] | Commercial [Member]
Loans [Line Items]
Total loans	155,255	170,789
Real Estate [Member] | Construction And Land Development [Member]
Loans [Line Items]
Total loans	25,212	32,389
Real Estate [Member] | Residential 1-4 Family [Member]
Loans [Line Items]
Total loans	243,938	255,998
Real Estate [Member] | Multifamily [Member]
Loans [Line Items]
Total loans	12,636	14,320
Real Estate [Member] | Farmland [Member]
Loans [Line Items]
Total loans	$ 35,179	$ 40,106