Parent Company Only (Schedule of Condensed Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Gain on sale of investment securities															$ 44
Other income	$ 4,720	$ 4,370	$ 2,708	$ 2,755	$ 2,595	$ 2,634	$ 2,489	$ 2,461	$ 2,263	$ 2,278	$ 2,264	$ 2,341	$ 14,553	$ 10,179	9,146
Credit for income taxes	(705)	(955)	(66)	(523)	(584)	(611)	(591)	(540)	(525)	(559)	(539)	(506)	(2,249)	(2,326)	(2,129)
Net income	$ 5,172	$ 4,977	$ 252	$ 2,634	$ 2,714	$ 3,058	$ 3,002	$ 2,802	$ 2,847	$ 2,863	$ 2,768	$ 2,528	13,035	11,576	11,006
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Equity in undistributed earnings of subsidiary													9,934	8,839	9,273
Dividends from subsidiary													5,378	4,037	2,723
Gain on sale of investment securities															44
Other income															11
Total income													15,312	12,876	12,051
Operating expenses													2,779	1,598	1,269
Income before taxes													12,533	11,278	10,782
Credit for income taxes													502	298	224
Net income													$ 13,035	$ 11,576	$ 11,006