Segment Information (Schedule Of Segment Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012 segment	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
Number of operating segments									2
Net interest income	$ 9,896	$ 9,935	$ 9,971	$ 10,018	$ 9,661	$ 9,921	$ 10,160	$ 10,102	$ 39,820	$ 39,844	$ 40,152
Provision for loan losses									8,500	10,000	21,350
Net interest income after provision for loan losses									31,320	29,844	18,802
Other income									5,340	5,550	7,739
Other expenses									29,728	30,285	31,471
Income (loss) before income taxes									6,932	5,109	(4,930)
Income tax expense (benefit)									1,219	1,035	(2,955)
Net income (loss)	2,105	997	913	1,698	1,480	1,936	905	(248)	5,713	4,074	(1,975)
Dividends on preferred shares									777	371	297
Net income (loss) applicable to common shares	1,910	803	719	1,504	1,331	1,862	831	(322)	4,936	3,703	(2,272)
Intersegment revenue (expense)
Average assets									1,421,101	1,469,794	1,512,142
Community Banking [Member]
Segment Reporting Information [Line Items]
Net interest income									41,600	41,658	42,069
Provision for loan losses									8,500	10,000	21,350
Net interest income after provision for loan losses									33,100	31,658	20,719
Other income									936	(167)	2,713
Other expenses									25,146	25,472	26,563
Income (loss) before income taxes									8,890	6,019	(3,131)
Income tax expense (benefit)									1,868	1,304	(2,293)
Net income (loss)									7,022	4,715	(838)
Dividends on preferred shares
Net income (loss) applicable to common shares									7,022	4,715	(838)
Intersegment revenue (expense)									(942)	(942)	(969)
Average assets									1,477,636	1,532,600	1,560,002
Insurance Services [Member]
Segment Reporting Information [Line Items]
Net interest income
Provision for loan losses
Net interest income after provision for loan losses
Other income									4,422	4,606	4,674
Other expenses									3,965	4,216	4,258
Income (loss) before income taxes									457	390	416
Income tax expense (benefit)									184	158	167
Net income (loss)									273	232	249
Dividends on preferred shares
Net income (loss) applicable to common shares									273	232	249
Intersegment revenue (expense)									(102)	(102)	(114)
Average assets									6,399	6,618	6,910
Parent [Member]
Segment Reporting Information [Line Items]
Net interest income									(1,780)	(1,814)	(1,917)
Provision for loan losses
Net interest income after provision for loan losses									(1,780)	(1,814)	(1,917)
Other income									1,026	2,155	1,435
Other expenses									1,661	1,641	1,733
Income (loss) before income taxes									(2,415)	(1,300)	(2,215)
Income tax expense (benefit)									(833)	(427)	(829)
Net income (loss)									(1,582)	(873)	(1,386)
Dividends on preferred shares									777	371	297
Net income (loss) applicable to common shares									(2,359)	(1,244)	(1,683)
Intersegment revenue (expense)									1,044	1,044	1,083
Average assets									154,506	143,379	141,550
Eliminations [Member]
Segment Reporting Information [Line Items]
Net interest income
Provision for loan losses
Net interest income after provision for loan losses
Other income									(1,044)	(1,044)	(1,083)
Other expenses									(1,044)	(1,044)	(1,083)
Income (loss) before income taxes
Income tax expense (benefit)
Net income (loss)
Dividends on preferred shares
Net income (loss) applicable to common shares
Intersegment revenue (expense)
Average assets									$ (217,440)	$ (212,803)	$ (196,320)