Quarterly Results Of Operations (Schedule Of Quarterly Financial Information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Results Of Operations [Abstract]
Interest Income	$ 8,629	$ 8,830	$ 8,761	$ 8,574	$ 9,123	$ 8,941	$ 8,876	$ 9,102	$ 34,794	$ 36,042	$ 39,142
Interest Expense	734	799	817	830	896	945	1,296	1,242	3,180	4,378	6,890
Net interest income	7,895	8,031	7,944	7,744	8,227	7,996	7,580	7,860	31,614	31,664	32,252
Provision for loan losses	300		266	198	965	350	803	803	764	2,920	5,225
Other noninterest income	2,791	2,788	2,641	2,380	2,584	2,529	2,422	2,384	109	240	184
Securities (losses) gains	59	(20)	221		4	(25)	(21)		280	33	44
Noninterest Expense	8,251	7,748	7,615	7,688	8,503	7,382	7,625	7,582	31,303	31,094	30,601
Income before federal income tax expense	2,194	3,051	2,925	2,238	1,347	2,768	1,553	1,859	10,408	7,527	5,877
Federal income tax expense	347	641	606	412	206	583	198	308	2,006	1,295	512
Net income	$ 1,847	$ 2,410	$ 2,319	$ 1,826	$ 1,141	$ 2,185	$ 1,355	$ 1,551	$ 8,402	$ 6,232	$ 5,365
Basic earnings per share	$ 0.44	$ 0.57	$ 0.55	$ 0.44	$ 0.27	$ 0.53	$ 0.33	$ 0.38	$ 2.01	$ 1.51	$ 1.32
Diluted earnings per share	$ 0.44	$ 0.57	$ 0.55	$ 0.44	$ 0.27	$ 0.53	$ 0.33	$ 0.38	$ 2.00	$ 1.51	$ 1.32
Dividend declared per share	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.68	$ 0.68	$ 0.78