Loans (Summary Of Impaired Loans) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Loans [Line Items]
Average Recorded Investment	$ 21,860	$ 33,471
Interest Income Recognized	329	795
Recorded Investment	20,199	22,780
Unpaid Principal Balance	23,498	26,118
Related Allowance	1,751	2,331
With No Related Allowance Recorded [Member] | Commercial [Member]
Loans [Line Items]
Average Recorded Investment	444	421
Interest Income Recognized	2
Recorded Investment	210	548
Unpaid Principal Balance	210	674
With No Related Allowance Recorded [Member] | Agriculture [Member]
Loans [Line Items]
Average Recorded Investment	47	62
Interest Income Recognized	3	4
Recorded Investment	36	52
Unpaid Principal Balance	36	52
With No Related Allowance Recorded [Member] | Consumer Installment Loans [Member]
Loans [Line Items]
Average Recorded Investment	29	12
Interest Income Recognized	3	1
Recorded Investment	60	15
Unpaid Principal Balance	$ 60	$ 15
With No Related Allowance Recorded [Member] | All Other Loans [Member]
Loans [Line Items]
Average Recorded Investment
Interest Income Recognized
Recorded Investment
Unpaid Principal Balance
Related Allowance
With An Allowance Recorded [Member] | Commercial [Member]
Loans [Line Items]
Average Recorded Investment	$ 86	$ 407
Interest Income Recognized	2	4
Recorded Investment	92	74
Unpaid Principal Balance	92	74
Related Allowance	46	26
With An Allowance Recorded [Member] | Agriculture [Member]
Loans [Line Items]
Average Recorded Investment	27	39
Interest Income Recognized	1	2
Recorded Investment	24	30
Unpaid Principal Balance	24	30
Related Allowance	24	30
With An Allowance Recorded [Member] | Consumer Installment Loans [Member]
Loans [Line Items]
Average Recorded Investment	$ 17	$ 10
With An Allowance Recorded [Member] | All Other Loans [Member]
Loans [Line Items]
Average Recorded Investment
Interest Income Recognized
Recorded Investment
Unpaid Principal Balance
Related Allowance
Real Estate [Member] | With No Related Allowance Recorded [Member] | Commercial [Member]
Loans [Line Items]
Average Recorded Investment	$ 4,381	$ 9,628
Interest Income Recognized	59	128
Recorded Investment	4,514	3,986
Unpaid Principal Balance	5,937	5,166
Real Estate [Member] | With No Related Allowance Recorded [Member] | Construction And Land Development [Member]
Loans [Line Items]
Average Recorded Investment	14	248
Interest Income Recognized		1
Recorded Investment	12	15
Unpaid Principal Balance	12	15
Real Estate [Member] | With No Related Allowance Recorded [Member] | Residential 1-4 Family [Member]
Loans [Line Items]
Average Recorded Investment	3,600	2,959
Interest Income Recognized	93	177
Recorded Investment	3,654	3,245
Unpaid Principal Balance	3,820	3,471
Real Estate [Member] | With No Related Allowance Recorded [Member] | Multifamily [Member]
Loans [Line Items]
Average Recorded Investment	580	370
Interest Income Recognized	2	26
Recorded Investment	435	438
Unpaid Principal Balance	476	479
Real Estate [Member] | With No Related Allowance Recorded [Member] | Farmland [Member]
Loans [Line Items]
Average Recorded Investment	5,484	5,383
Interest Income Recognized	52	114
Recorded Investment	4,993	5,767
Unpaid Principal Balance	5,861	6,801
Real Estate [Member] | With An Allowance Recorded [Member] | Commercial [Member]
Loans [Line Items]
Average Recorded Investment	3,384	6,338
Interest Income Recognized	40	132
Recorded Investment	2,801	4,517
Unpaid Principal Balance	3,137	4,905
Related Allowance	889	1,482
Real Estate [Member] | With An Allowance Recorded [Member] | Construction And Land Development [Member]
Loans [Line Items]
Average Recorded Investment	391	505
Interest Income Recognized		14
Recorded Investment	413	303
Unpaid Principal Balance	663	355
Related Allowance	237	88
Real Estate [Member] | With An Allowance Recorded [Member] | Residential 1-4 Family [Member]
Loans [Line Items]
Average Recorded Investment	2,340	4,248
Interest Income Recognized	53	126
Recorded Investment	2,168	2,573
Unpaid Principal Balance	2,378	2,852
Related Allowance	200	347
Real Estate [Member] | With An Allowance Recorded [Member] | Multifamily [Member]
Loans [Line Items]
Average Recorded Investment	38	268
Interest Income Recognized		7
Recorded Investment		113
Unpaid Principal Balance		113
Related Allowance		15
Real Estate [Member] | With An Allowance Recorded [Member] | Farmland [Member]
Loans [Line Items]
Average Recorded Investment	998	2,573
Interest Income Recognized	19	59
Recorded Investment	787	1,104
Unpaid Principal Balance	792	1,116
Related Allowance	$ 355	$ 343