Segment Information (Schedule Of Business Segments) (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) segment	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Number of primary business segments | segment									2
Net interest income (expense)	$ 11,160	$ 11,095	$ 10,118	$ 9,644	$ 9,403	$ 9,069	$ 8,516	$ 8,260	$ 42,017	$ 35,248	$ 31,804
Provision for loan losses									738	1,209	1,216
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES									41,279	34,039	30,588
Non-interest income									13,003	11,252	13,720
Insurance service and fees									7,898	6,519	7,194
Amortization expense									113
Non-interest expense									38,594	35,096	32,698
INCOME BEFORE INCOME TAXES									15,688	10,195	11,610
Income tax provision									5,209	1,923	3,767
NET INCOME	$ 992	$ 3,723	$ 2,618	$ 3,146	$ 2,339	$ 2,216	$ 2,003	$ 1,714	10,479	8,272	7,843
Operating Segments [Member]
Net interest income (expense)									42,017	35,248	31,804
Provision for loan losses									738	1,209	1,216
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES									41,279	34,039	30,588
Non-interest income									5,105	4,733	6,526
Insurance service and fees									7,898	6,519	7,194
Amortization expense									113
Non-interest expense									38,481	35,096	32,698
INCOME BEFORE INCOME TAXES									15,688	10,195	11,610
Income tax provision									5,209	1,923	3,767
NET INCOME									10,479	8,272	7,843
Banking Activities [Member] | Operating Segments [Member]
Net interest income (expense)									42,119	35,371	31,921
Provision for loan losses									738	1,209	1,216
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES									41,381	34,162	30,705
Non-interest income									5,105	4,733	6,526
Insurance service and fees									416	400	672
Non-interest expense									32,610	30,438	28,103
INCOME BEFORE INCOME TAXES									14,292	8,857	9,800
Income tax provision									4,674	1,408	3,071
NET INCOME									9,618	7,449	6,729
Insurance Agency Activities [Member] | Operating Segments [Member]
Net interest income (expense)									(102)	(123)	(117)
Provision for loan losses
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES									(102)	(123)	(117)
Non-interest income
Insurance service and fees									7,482	6,119	6,522
Amortization expense									113
Non-interest expense									5,871	4,658	4,595
INCOME BEFORE INCOME TAXES									1,396	1,338	1,810
Income tax provision									535	515	696
NET INCOME									$ 861	$ 823	$ 1,114