Parent Company Only Financial Information (Condensed Statement of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Unrealized losses on AFS Securities, net of tax	$ 674	$ (1,194)
Other Comprehensive Income (Loss), Net of Tax	1,255	(2,521)
Parent Company [Member]
Available for Sale Securities, unrealized holding losses, before tax	594	(795)
Available for Sale Securities, Unrealized holding losses, tax effect	(137)	317
Unrealized losses on AFS Securities, net of tax	457	(478)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	81	766
Taxes	(22)	(305)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	59	461
Other Comprehensive Income (Loss), before Tax	675	(29)
Other Comprehensive Income (Loss), Tax	(159)	12
Other Comprehensive Income (Loss), Net of Tax	$ 516	$ (17)