6. Loans (Schedule Of Nonaccrual Loans Included In Net Balance Of Loans) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 31,771	$ 37,776	$ 43,803
Commercial Loan [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,557	5,002	5,343
Owner Occupied [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,795	1,524	921
Non Owner Occupied [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	1,032	1,882
Land And Land Improvements [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	12,851	13,487	16,558
Construction Loans [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	38	154	203
Non Jumbo [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,119	3,518	3,122
Jumbo [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	9,000	12,564	15,272
Home Equity [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	266	440	415
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	145	55	87
Other Loans [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 0	$ 0	$ 0