Condensed Financial Statements Of Parent Company (Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Realized securities gains									$ 1,444	$ 213	$ 240
Interest expense									12,867	15,241	18,477
Income before income taxes									22,995	16,034	10,756
Income tax expense									6,893	4,678	2,688
Net Income	$ 4,146	$ 3,661	$ 4,010	$ 4,285	$ 3,199	$ 3,336	$ 2,432	$ 2,389	16,102	11,356	8,068
Dividends on preferred shares									0	771	775
Net income (loss) applicable to common shares	$ 4,146	$ 3,661	$ 4,010	$ 4,285	$ 3,008	$ 3,143	$ 2,239	$ 2,195	16,102	10,585	7,293
Parent Company [Member]
Dividends from subsidiaries									10,000	6,500	2,500
Other dividends and interest income									19	22	26
Realized securities gains									0	41	0
Management and service fees from subsidiaries									1,133	1,189	1,087
Total income									11,152	7,752	3,613
Interest expense									747	1,845	1,948
Operating expenses									2,390	1,746	1,717
Total expenses									3,137	3,591	3,665
Income before income taxes									8,015	4,161	(52)
Income tax expense									(692)	(739)	(894)
Income before equity in undistributed income of subsidiaries									8,707	4,900	842
Equity in (distributed) undistributed income of subsidiaries									7,395	6,456	7,226
Net Income									16,102	11,356	8,068
Dividends on preferred shares									0	771	775
Net income (loss) applicable to common shares									$ 16,102	$ 10,585	$ 7,293