Loans Receivable and Allowance for Loan Losses (Average Of Impaired Loans And Related Interest Income By Loan Portfolio Class) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Schedule Of Financing Receivable Impaired Investment [Line Items]
Impaired Loans with no related allowance recorded: Average Recorded Investment	$ 17,521	$ 27,132	$ 22,049	$ 26,120
Impaired Loans with no related allowance recorded: Interest Income Recognized	192	248	654	786
Impaired Loans with an allowance recorded: Average Recorded Investment	9,038	15,903	11,926	14,635
Impaired Loans with an allowance recorded: Interest Income Recognized	61	188	223	390
Total Average Recorded Investment	26,559	43,035	33,975	40,755
Total Interest Income Recognized	253	436	877	1,176
Commercial Real Estate [Member]
Schedule Of Financing Receivable Impaired Investment [Line Items]
Impaired Loans with no related allowance recorded: Average Recorded Investment	12,063	15,728	15,865	14,786
Impaired Loans with no related allowance recorded: Interest Income Recognized	178	186	599	556
Impaired Loans with an allowance recorded: Average Recorded Investment	1,925	9,256	4,565	7,488
Impaired Loans with an allowance recorded: Interest Income Recognized	10	124	71	259
Total Average Recorded Investment	13,988	24,984	20,430	22,274
Total Interest Income Recognized	188	310	670	815
Construction and Land Development [Member]
Schedule Of Financing Receivable Impaired Investment [Line Items]
Impaired Loans with no related allowance recorded: Average Recorded Investment	1,421	4,878	2,217	4,946
Impaired Loans with no related allowance recorded: Interest Income Recognized	3	27	32	86
Impaired Loans with an allowance recorded: Average Recorded Investment	545	923	445	1,305
Impaired Loans with an allowance recorded: Interest Income Recognized	0	0	0	0
Total Average Recorded Investment	1,966	5,801	2,662	6,251
Total Interest Income Recognized	3	27	32	86
Commercial and Industrial [Member]
Schedule Of Financing Receivable Impaired Investment [Line Items]
Impaired Loans with no related allowance recorded: Average Recorded Investment	3,034	4,955	2,968	4,509
Impaired Loans with no related allowance recorded: Interest Income Recognized	7	28	18	106
Impaired Loans with an allowance recorded: Average Recorded Investment	3,392	2,480	3,628	3,454
Impaired Loans with an allowance recorded: Interest Income Recognized	14	16	42	35
Total Average Recorded Investment	6,426	7,435	6,596	7,963
Total Interest Income Recognized	21	44	60	141
Owner occupied Real Estate [Member]
Schedule Of Financing Receivable Impaired Investment [Line Items]
Impaired Loans with no related allowance recorded: Average Recorded Investment	465	673	299	1,013
Impaired Loans with no related allowance recorded: Interest Income Recognized	4	3	4	30
Impaired Loans with an allowance recorded: Average Recorded Investment	3,013	3,123	3,201	2,315
Impaired Loans with an allowance recorded: Interest Income Recognized	37	48	110	96
Total Average Recorded Investment	3,478	3,796	3,500	3,328
Total Interest Income Recognized	41	51	114	126
Consumer and Other [Member]
Schedule Of Financing Receivable Impaired Investment [Line Items]
Impaired Loans with no related allowance recorded: Average Recorded Investment	538	898	700	866
Impaired Loans with no related allowance recorded: Interest Income Recognized	0	4	1	8
Impaired Loans with an allowance recorded: Average Recorded Investment	163	121	87	73
Impaired Loans with an allowance recorded: Interest Income Recognized	0	0	0	0
Total Average Recorded Investment	701	1,019	787	939
Total Interest Income Recognized	$ 0	$ 4	$ 1	$ 8