Condensed Financial Information - Parent Company Only (Schedule of Condensed Income Statement) (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, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest and Dividend Income, Operating [Abstract]
Interest and fees on loans													$ 27,890	$ 24,821	$ 23,037
Interest Expense [Abstract]
Interest expense on borrowings													0	57	136
Income Tax (Benefit)													1,314	3,626	2,553
Net income	$ 2,081	$ 1,860	$ 2,521	$ 2,539	$ 1,710	$ 2,007	$ 2,027	$ 2,042	$ 1,805	$ 1,430	$ 1,610	$ 1,525	9,001	7,786	6,370
Comprehensive income													7,138	8,069	5,295
Parent Company [Member]
Interest and Dividend Income, Operating [Abstract]
Dividends from subsidiary bank													3,500	3,800	4,350
Interest and fees on loans													115	106	97
Other interest and dividends													0	0	2
Other income													0	0	149
Total income													3,615	3,906	4,598
Interest Expense [Abstract]
Interest expense on borrowings													0	0	143
Other operating expenses													272	255	211
Total expenses													272	255	354
Income before income tax (benefit) and equity in undistributed earnings of subsidiary bank													3,343	3,651	4,244
Income Tax (Benefit)													(45)	(58)	(36)
Income before equity in undistributed earnings of subsidiary bank													3,388	3,709	4,280
Equity in Undistributed Net Income of Subsidiary Bank													5,613	4,077	2,090
Net income													9,001	7,786	6,370
Comprehensive income													$ 7,138	$ 8,069	$ 5,295