Loans (Schedule Of Contractual Aging Of Recorded Investment In Past Due Loans By Class) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	$ 4,349	$ 14,166	$ 7,623
Past Due, 60-89 days	3,324	4,380	2,391
Past Due, > 90 days	35,453	38,761	15,139
Past Due, Total	43,126	57,307	25,153
Current	915,627	925,921	957,145
Recorded Investment > 90 days and Accruing		344
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	273	904	194
Past Due, 60-89 days	634	324	178
Past Due, > 90 days	1,594	2,544	2,606
Past Due, Total	2,501	3,772	2,978
Current	86,496	95,252	87,444
Recorded Investment > 90 days and Accruing
Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	216	4,241	510
Past Due, 60-89 days	581	197
Past Due, > 90 days	400	664	1,403
Past Due, Total	1,197	5,102	1,913
Current	148,893	153,652	169,279
Recorded Investment > 90 days and Accruing
Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	513	1,566	1,926
Past Due, 60-89 days		1,752	667
Past Due, > 90 days	1,882	1,705	1,308
Past Due, Total	2,395	5,023	3,901
Current	276,737	265,203	249,637
Recorded Investment > 90 days and Accruing
Land And Land Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	17	1,539	814
Past Due, 60-89 days	39	116	438
Past Due, > 90 days	13,412	16,392	4,635
Past Due, Total	13,468	18,047	5,887
Current	69,389	74,988	88,136
Recorded Investment > 90 days and Accruing		344
Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	50	106
Past Due, 60-89 days
Past Due, > 90 days	153	979	152
Past Due, Total	203	1,085	152
Current	1,884	1,851	9,293
Recorded Investment > 90 days and Accruing
Non-Jumbo [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	2,681	4,730	3,973
Past Due, 60-89 days	2,029	1,624	835
Past Due, > 90 days	2,544	2,336	3,493
Past Due, Total	7,254	8,690	8,301
Current	208,330	213,043	216,198
Recorded Investment > 90 days and Accruing
Jumbo [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days		699
Past Due, 60-89 days
Past Due, > 90 days	15,273	13,965	1,345
Past Due, Total	15,273	14,664	1,345
Current	47,475	46,871	60,910
Recorded Investment > 90 days and Accruing
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	280		28
Past Due, 60-89 days	5	223	132
Past Due, > 90 days	149	91	120
Past Due, Total	434	314	280
Current	53,021	50,584	50,745
Recorded Investment > 90 days and Accruing
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	319	381	178
Past Due, 60-89 days	36	144	141
Past Due, > 90 days	46	85	77
Past Due, Total	401	610	396
Current	20,889	21,715	22,592
Recorded Investment > 90 days and Accruing
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days
Past Due, 60-89 days
Past Due, > 90 days
Past Due, Total
Current	2,513	2,762	2,911
Recorded Investment > 90 days and Accruing