Loans (Schedule Of Loan Maturities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	$ 153,307
Loan maturities, After 1 but within 5 Years	169,002
Loan maturities, After 5 Years	632,792
Loans due after one year with: Variable rates	144,585
Loans due after one year with: Fixed rates	657,209
Loans due after one year	801,794
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	30,702
Loan maturities, After 1 but within 5 Years	35,336
Loan maturities, After 5 Years	19,791
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	38,526
Loan maturities, After 1 but within 5 Years	94,352
Loan maturities, After 5 Years	297,456
Construction And Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	52,683
Loan maturities, After 1 but within 5 Years	6,246
Loan maturities, After 5 Years	24,178
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	25,935
Loan maturities, After 1 but within 5 Years	17,385
Loan maturities, After 5 Years	288,224
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	4,753
Loan maturities, After 1 but within 5 Years	14,231
Loan maturities, After 5 Years	1,602
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	708
Loan maturities, After 1 but within 5 Years	1,452
Loan maturities, After 5 Years	$ 1,541