Loans (Schedule Of Contractual Aging Of Recorded Investment In Past Due Loans By Class) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	$ 6,911	$ 4,400	$ 7,858
Past Due, 60-89 days	2,990	3,341	5,256
Past Due, > 90 days	28,492	31,761	35,475
Past Due, Total	38,393	39,503	48,589
Current	924,368	915,598	927,731
Recorded Investment > 90 days and Accruing
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	148	225	893
Past Due, 60-89 days	44	5	37
Past Due, > 90 days	1,921	2,294	2,234
Past Due, Total	2,113	2,524	3,164
Current	84,764	83,305	96,222
Recorded Investment > 90 days and Accruing
Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	1,075	57	1,007
Past Due, 60-89 days	310		412
Past Due, > 90 days		1,023	955
Past Due, Total	1,385	1,080	2,374
Current	150,557	153,172	151,154
Recorded Investment > 90 days and Accruing
Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	222	182	1,411
Past Due, 60-89 days	708	193
Past Due, > 90 days	909	908	1,928
Past Due, Total	1,839	1,283	3,339
Current	286,636	274,799	272,388
Recorded Investment > 90 days and Accruing
Land And Land Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	65		375
Past Due, 60-89 days	794		1,960
Past Due, > 90 days	10,538	11,795	13,906
Past Due, Total	11,397	11,795	16,241
Current	64,880	67,540	71,971
Recorded Investment > 90 days and Accruing
Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days
Past Due, 60-89 days
Past Due, > 90 days	153	153	887
Past Due, Total	153	153	887
Current	5,629	3,619	1,261
Recorded Investment > 90 days and Accruing
Non-Jumbo [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	4,910	3,344	2,679
Past Due, 60-89 days	1,052	2,616	2,409
Past Due, > 90 days	2,362	2,797	2,863
Past Due, Total	8,324	8,757	7,951
Current	205,641	207,957	211,534
Recorded Investment > 90 days and Accruing
Jumbo [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days			1,337
Past Due, 60-89 days
Past Due, > 90 days	12,565	12,564	12,621
Past Due, Total	12,565	12,565	13,958
Current	50,284	49,002	48,878
Recorded Investment > 90 days and Accruing
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	247	337
Past Due, 60-89 days	48	448	335
Past Due, > 90 days		179	55
Past Due, Total	295	964	390
Current	53,470	52,299	50,494
Recorded Investment > 90 days and Accruing
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	244	255	156
Past Due, 60-89 days	34	79	103
Past Due, > 90 days	44	48	26
Past Due, Total	322	382	285
Current	19,316	20,204	21,289
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	3,191	3,701	2,540
Recorded Investment > 90 days and Accruing