Securities (Amortized Cost And Approximate Fair Value Of Securities Available For Sale) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 98,281	$ 89,853
Gross Unrealized Gains	1,089	358
Gross Unrealized Losses	(640)	(1,600)
Fair Value	98,730	88,611
U.S. government agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,799	13,115
Gross Unrealized Gains	90	29
Gross Unrealized Losses	(28)	(57)
Fair Value	18,861	13,087
U.S. government sponsored agency
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	6,054
Gross Unrealized Gains	8
Gross Unrealized Losses	(1)
Fair Value	6,061
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	40,470	41,255
Gross Unrealized Gains	896	203
Gross Unrealized Losses	(132)	(770)
Fair Value	41,234	40,688
U.S. government-sponsored enterprises
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	30,958	33,483
Gross Unrealized Gains	65	126
Gross Unrealized Losses	(479)	(755)
Fair Value	30,544	32,854
Corporate debt
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,000	2,000
Gross Unrealized Gains	30	0
Gross Unrealized Losses	0	(18)
Fair Value	$ 2,030	$ 1,982