6. Loans (Schedule Of Method Used To Measure Impairment Of Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Impaired Financing Receivable, Unpaid Principal Balance	$ 51,703	$ 60,782	$ 89,146
Commercial Loan [Member] | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance	899	1,864	10,322
Commercial Loan [Member] | Discounted Cash Flow [Member]
Impaired Financing Receivable, Unpaid Principal Balance		158	164
Owner Occupied | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance	4,856	10,067	13,334
Owner Occupied | Discounted Cash Flow [Member]
Impaired Financing Receivable, Unpaid Principal Balance	7,598	2,483	2,673
Non Owner Occupied [Member] | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance	518	5,832	6,858
Non Owner Occupied [Member] | Discounted Cash Flow [Member]
Impaired Financing Receivable, Unpaid Principal Balance	5,259
Land And Land Improvements | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance	16,107	24,625	27,395
Land And Land Improvements | Discounted Cash Flow [Member]
Impaired Financing Receivable, Unpaid Principal Balance	1,457	644	656
Construction [Member] | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance
Non Jumbo | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance	3,450	5,516	5,190
Non Jumbo | Discounted Cash Flow [Member]
Impaired Financing Receivable, Unpaid Principal Balance	2,603	566	829
Jumbo [Member] | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance	6,644	8,768	21,450
Jumbo [Member] | Discounted Cash Flow [Member]
Impaired Financing Receivable, Unpaid Principal Balance	2,086
Home Equity | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance	186	212	213
Consumer Portfolio Segment | Fair Value Of Collateral [Member]
Impaired Financing Receivable, Unpaid Principal Balance	$ 40	$ 47	$ 62