6. Loans (Schedule Of Nonaccrual Loans Included In Net Balance Of Loans) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 30,892	$ 37,776	$ 46,037
Commercial Loan [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,996	5,002	6,476
Owner Occupied [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	796	1,524	2,248
Non Owner Occupied [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	899	1,032	1,288
Land And Land Improvements [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	11,445	13,487	17,244
Construction Loans [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	60	154	153
Non Jumbo [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	4,333	3,518	3,449
Jumbo [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	9,000	12,564	14,752
Home Equity [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	271	440	349
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	92	55	78
Other Loans [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status		$ 0