Parent Company Condensed Financial Information (Statements Of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Noninterest income	$ 16,085	$ 14,457	$ 18,931
Subordinated debentures	2,350	2,284	2,233
Noninterest expenses	63,246	58,240	56,912
Total income (loss) before taxes and equity in undistributed income of subsidiaries	27,513	27,200	33,647
Taxes on income (loss)	9,809	9,793	12,617
Net income	17,704	17,407	21,030
Parent Company [Member]
Cash dividends from subsidiaries	10,052	20,046	18,045
Noninterest income	25	45	34
Investment income		20	1,337
Other operating income	15	25	3
Security gains		163
Total income	10,092	20,299	19,419
Subordinated debentures	1,740	1,566	1,505
Noninterest expenses	2,191	1,756	1,317
Total expense	3,931	3,322	2,822
Total income (loss) before taxes and equity in undistributed income of subsidiaries	6,161	16,977	16,597
Taxes on income (loss)	(1,377)	(1,167)	(582)
Income (loss) before equity in undistributed income of subsidiaries	7,538	18,144	17,179
Equity in undistributed income (loss) of subsidiaries	10,166	(737)	3,851
Net income	$ 17,704	$ 17,407	$ 21,030