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Loans And Related Allowances For Loan Losses (Average Of Impaired Loans And Related Interest Income By Loan Portfolio Class) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | $ 46,133 | $ 51,190 | $ 46,702 | $ 54,734
Interest income recognized on an accrual basis | 296 | 257 | 623 | 545
Interest income recognized on a cash basis | 303 | 21 | 351 | 39
Commercial real estate- non owner-occupied [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | 5,136 | 7,467 | 5,194 | 8,170
Interest income recognized on an accrual basis | 11 | 6 | 23 | 12
Interest income recognized on a cash basis | 0 | 0 | 0 | 0
Commercial real estate- all other CRE [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | 10,670 | 8,483 | 10,657 | 8,110
Interest income recognized on an accrual basis | 89 | 54 | 178 | 134
Interest income recognized on a cash basis | 0 | 0 | 46 | 0
Acquisition and development- 1-4 family residential construction [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | 3,410 | 2,282 | 2,961 | 2,351
Interest income recognized on an accrual basis | 18 | 22 | 42 | 46
Interest income recognized on a cash basis | 0 | 0 | 0 | 0
Acquisition and development- All other A&D [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | 19,008 | 22,759 | 20,022 | 22,909
Interest income recognized on an accrual basis | 127 | 102 | 269 | 207
Interest income recognized on a cash basis | 303 | 0 | 303 | 0
Commercial and industrial [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | 2,838 | 4,009 | 3,042 | 7,022
Interest income recognized on an accrual basis | 31 | 38 | 66 | 72
Interest income recognized on a cash basis | 0 | 0 | 0 | 0
Residential mortgage- term [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | 4,384 | 5,151 | 4,174 | 5,112
Interest income recognized on an accrual basis | 14 | 32 | 33 | 67
Interest income recognized on a cash basis | 0 | 21 | 2 | 36
Residential mortgage- home equity [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | 575 | 979 | 566 | 1,013
Interest income recognized on an accrual basis | 6 | 3 | 12 | 7
Interest income recognized on a cash basis | 0 | 0 | 0 | 3
Consumer [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Investment | 112 | 60 | 86 | 47
Interest income recognized on an accrual basis | 0 | 0 | 0 | 0
Interest income recognized on a cash basis | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5258-111524 + Details
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