Accumulated Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances			$ 163,736	$ 154,299
Other comprehensive income	$ (299)	$ (228)	(2,763)	939
Balances	171,419	162,648	171,419	162,648
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances			(1,309)	(993)
Cumulative effect adjustment	6		6
Other comprehensive income			(2,763)	942
Reclassification of (gains) recognized				(3)
Balances	(4,066)	(54)	(4,066)	(54)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances			(1,255)	(931)
Cumulative effect adjustment	6		6
Other comprehensive income			(2,778)	927
Reclassification of (gains) recognized				(3)
Balances	(4,027)	(7)	(4,027)	(7)
Unrealized Gains Losses On Securities Transferred From Available For Sale To Held To Maturity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances			(54)	(62)
Other comprehensive income				15
Other comprehensive income, transferred from Available for sale to Held to maturity			15
Balances	$ (39)	$ (47)	$ (39)	$ (47)