Fair Value Measurements (Schedule Of Level Of Valuation Assumptions Used To Determine Each Adjustment And The Carrying Value Of The Related Individual Assets And the Total Losses On a Nonrecurring Basis) (Details) (USD $)	Jun. 30, 2011		Dec. 31, 2010
Total impaired loans	$ 73,095,000		$ 111,022,000
Loans held-for-sale	1,637,000		2,873,000
Other real estate owned	68,861,000	[1]	83,264,000	[2]
Investments in venture capital	8,538,000		8,410,000
Equity investments	522,000		522,000
Total assets	152,653,000		206,091,000
Other real estate owned net of disposal costs	74,200,000		77,700,000
Commercial Loans [Member]
Total impaired loans	19,636,000		4,824,000
Commercial Loans [Member] | Fair Value Measurement, Level 3 [Member]
Total impaired loans	19,636,000		4,824,000
Construction- Residential [Member]
Total impaired loans	500,000		500,000
Construction- Residential [Member] | Fair Value Measurement, Level 3 [Member]
Total impaired loans	500,000		500,000
Construction- Other [Member]
Total impaired loans			5,659,000
Construction- Other [Member] | Fair Value Measurement, Level 3 [Member]
Total impaired loans			5,659,000
Real Estate Loans [Member]
Total impaired loans	41,372,000		99,309,000
Real Estate Loans [Member] | Fair Value Measurement, Level 3 [Member]
Total impaired loans	41,372,000		99,309,000
Land Loans [Member]
Total impaired loans	265,000		730,000
Land Loans [Member] | Fair Value Measurement, Level 3 [Member]
Total impaired loans	265,000		730,000
Residential Mortgage Loans [Member]
Total impaired loans	11,322,000
Residential Mortgage Loans [Member] | Fair Value Measurement, Level 3 [Member]
Total impaired loans	11,322,000
Fair Value Measurement, Level 1 [Member]
Equity investments	522,000		522,000
Total assets	522,000		522,000
Fair Value Measurement, Level 2 [Member]
Other real estate owned	61,044,000	[1]	72,159,000	[2]
Total assets	61,044,000		72,159,000
Fair Value Measurement, Level 3 [Member]
Total impaired loans	73,095,000		111,022,000
Loans held-for-sale	1,637,000		2,873,000
Other real estate owned	7,817,000	[1]	11,105,000	[2]
Investments in venture capital	8,538,000		8,410,000
Total assets	$ 91,087,000		$ 133,410,000

[1] Other real estate owned balance of $74.2 million in the consolidated balance sheet is net of estimated disposal costs.

[2] Other real estate owned balance of $77.7 million in the consolidated balance sheet is net of estimated disposal costs.