Parent Company Financial Information (Schedule of Condensed Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Condensed Income Statements, Captions [Line Items]
Interest expense	$ 2,780	$ 2,484	$ 2,221	$ 1,886	$ 1,593	$ 1,483	$ 1,382	$ 1,262	$ 9,371	$ 5,720
Net income	$ 3,002	$ 3,020	$ 2,049	$ 2,613	$ 808	$ 2,411	$ 2,286	$ 2,441	10,684	7,946
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Equity in undistributed income of subsidiary									9,913	8,496
Dividends from subsidiary									1,650	250
Total income									11,563	8,746
Interest expense									879	800
Total expense									879	800
Net income									$ 10,684	$ 7,946