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Allowance for Loan and Lease Losses (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | $ 33,171 | $ 34,805 | $ 32,643
Provision charged to operations | 9,450 | 13,262 | 16,484
Recoveries | 3,214 | 2,638 | 3,314
Charge-offs | 12,590 | 17,534 | 17,636
ALLL balance, end of year | 33,245 | 33,171 | 34,805
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 3,248 | 4,669 |
Collectively evaluated for impairment | 29,997 | 28,502 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 62,498 | 47,110 |
Collectively evaluated for impairment | 2,488,075 | 2,509,438 |
Commercial Construction [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 4,023 | 4,332 |
Provision charged to operations | 1,009 | 2,171 |
Recoveries | 35 | 30 |
Charge-offs | 1,034 | 2,510 |
ALLL balance, end of year | 4,033 | 4,023 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 1,820 | 2,203 |
Collectively evaluated for impairment | 2,213 | 1,820 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 9,395 | 10,572 |
Collectively evaluated for impairment | 110,052 | 110,005 |
Commercial Secured by Real Estate [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 11,753 | 12,327 |
Provision charged to operations | 3,520 | 3,304 |
Recoveries | 303 | 140 |
Charge-offs | 2,035 | 4,018 |
ALLL balance, end of year | 13,541 | 11,753 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 1,090 | 1,156 |
Collectively evaluated for impairment | 12,451 | 10,597 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 38,113 | 31,336 |
Collectively evaluated for impairment | 769,100 | 767,551 |
Commercial Other [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 5,608 | 7,392 |
Provision charged to operations | 2,330 | 1,867 |
Recoveries | 764 | 441 |
Charge-offs | 3,233 | 4,092 |
ALLL balance, end of year | 5,469 | 5,608 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 338 | 1,310 |
Collectively evaluated for impairment | 5,131 | 4,298 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 14,295 | 5,202 |
Collectively evaluated for impairment | 362,053 | 369,395 |
Equipment Lease Financing [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 112 | 148 |
Provision charged to operations | 14 | (36) |
Recoveries | 0 | 0 |
Charge-offs | 0 | 0 |
ALLL balance, end of year | 126 | 112 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 126 | 112 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 9,246 | 9,706 |
Real Estate Construction [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 354 | 271 |
Provision charged to operations | 183 | 376 |
Recoveries | 28 | 26 |
Charge-offs | 189 | 319 |
ALLL balance, end of year | 376 | 354 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 376 | 354 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 55,041 | 53,534 |
Real Estate Mortgage [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 4,302 | 2,982 |
Provision charged to operations | 1,437 | 2,827 |
Recoveries | 151 | 82 |
Charge-offs | 1,123 | 1,589 |
ALLL balance, end of year | 4,767 | 4,302 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 4,767 | 4,302 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 695 | 0 |
Collectively evaluated for impairment | 696,233 | 650,075 |
Home Equity [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 562 | 407 |
Provision charged to operations | 238 | 310 |
Recoveries | 11 | 16 |
Charge-offs | 248 | 171 |
ALLL balance, end of year | 563 | 562 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 563 | 562 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 82,292 | 84,841 |
Consumer Direct [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 917 | 1,169 |
Provision charged to operations | 892 | 257 |
Recoveries | 538 | 452 |
Charge-offs | 1,245 | 961 |
ALLL balance, end of year | 1,102 | 917 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 1,102 | 917 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 122,581 | 123,949 |
Consumer Indirect [Member] |  |  |
Allowance for loan losses [Roll Forward] |  |  |
ALLL balance, beginning of year | 5,540 | 5,777 |
Provision charged to operations | (173) | 2,186 |
Recoveries | 1,384 | 1,451 |
Charge-offs | 3,483 | 3,874 |
ALLL balance, end of year | 3,268 | 5,540 |
Allowance for Loan Losses Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | 3,268 | 5,540 |
Loans Ending balance: [Abstract] |  |  |
Individually evaluated for impairment | 0 | 0 |
Collectively evaluated for impairment | $ 281,477 | $ 340,382 |

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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition The sum of the periodic provision charged to earnings, based on an assessment of uncollectibility from the counterparty on account of loan, lease or other credit losses, to reduce these accounts to the amount that approximates their net realizable value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Paragraph 168, 169, 170 -IssueDate 2006-05-01 -Chapter 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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