Condensed Financial Information Parent Company (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statements Of Comprehensive Income
Dividends from bank subsidiary	$ 117	$ 126	$ 126
Interest on subordinated debt	(112)	(91)	(88)
Federal income tax expense	(1,127)	(1,219)	(902)
NET INCOME	4,871	4,378	3,869
Comprehensive income	2,148	3,764	7,133
Parent Company
Statements Of Comprehensive Income
Dividends from bank subsidiary	1,400	3,310	1,013
Interest and dividend income	121	97	93
Other income	60	63	62
Interest on subordinated debt	(112)	(91)	(88)
Other expenses	(497)	(513)	(311)
Income before income tax and equity in undistributed earnings of subsidiaries	972	2,866	769
Federal income tax expense	265	133	95
Equity in undistributed earnings of subsidiaries	3,634	1,379	3,005
NET INCOME	4,871	4,378	3,869
Comprehensive income	$ 2,148	$ 3,764	$ 7,133