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Loans, Allowance for Loan Losses and Recorded Investments (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | $ 33,134 | $ 35,152 | $ 33,171 | $ 34,805
Provision charged to expense | 2,919 | 2,515 | 6,504 | 10,222
Losses charged off | 3,664 | 3,360 | 8,997 | 12,088
Recoveries | 800 | 692 | 2,511 | 2,060
Ending balance | 33,189 | 34,999 | 33,189 | 34,999
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 3,574 | 6,305 | 3,574 | 6,305
Collectively evaluated for impairment | 29,615 | 28,694 | 29,615 | 28,694
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 60,891 | 56,021 | 60,891 | 56,021
Collectively evaluated for impairment | 2,490,646 | 2,517,536 | 2,490,646 | 2,517,536
Commercial Construction [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 3,931 | 4,637 | 4,023 | 4,332
Provision charged to expense | 1,249 | 1,162 | 1,500 | 1,958
Losses charged off | 787 | 304 | 1,262 | 808
Recoveries | 67 | 16 | 199 | 29
Ending balance | 4,460 | 5,511 | 4,460 | 5,511
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 2,321 | 3,714 | 2,321 | 3,714
Collectively evaluated for impairment | 2,139 | 1,797 | 2,139 | 1,797
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 10,102 | 14,995 | 10,102 | 14,995
Collectively evaluated for impairment | 104,989 | 106,147 | 104,989 | 106,147
Commercial Secured By Real Estate [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 13,262 | 13,202 | 11,753 | 12,327
Provision charged to expense | 698 | (134) | 3,148 | 2,858
Losses charged off | 658 | 369 | 1,645 | 2,582
Recoveries | 87 | 27 | 133 | 123
Ending balance | 13,389 | 12,726 | 13,389 | 12,726
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 938 | 1,826 | 938 | 1,826
Collectively evaluated for impairment | 12,451 | 10,900 | 12,451 | 10,900
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 37,505 | 35,927 | 37,505 | 35,927
Collectively evaluated for impairment | 783,420 | 770,251 | 783,420 | 770,251
Commercial Other [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 5,487 | 5,452 | 5,608 | 7,392
Provision charged to expense | 529 | 366 | 1,454 | 1,039
Losses charged off | 766 | 856 | 2,161 | 3,691
Recoveries | 184 | 127 | 533 | 349
Ending balance | 5,434 | 5,089 | 5,434 | 5,089
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 315 | 765 | 315 | 765
Collectively evaluated for impairment | 5,119 | 4,324 | 5,119 | 4,324
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 12,618 | 4,789 | 12,618 | 4,789
Collectively evaluated for impairment | 366,690 | 372,101 | 366,690 | 372,101
Equipment Lease Financing [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 142 | 123 | 112 | 148
Provision charged to expense | (5) | 0 | 25 | (25)
Losses charged off | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Ending balance | 137 | 123 | 137 | 123
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 | 0
Collectively evaluated for impairment | 137 | 123 | 137 | 123
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 | 0
Collectively evaluated for impairment | 10,167 | 10,765 | 10,167 | 10,765
Real Estate Construction [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 390 | 296 | 354 | 271
Provision charged to expense | (8) | 261 | 189 | 347
Losses charged off | 18 | 244 | 189 | 319
Recoveries | 3 | 6 | 13 | 20
Ending balance | 367 | 319 | 367 | 319
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 | 0
Collectively evaluated for impairment | 367 | 319 | 367 | 319
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 28 | 0 | 28
Collectively evaluated for impairment | 54,431 | 50,422 | 54,431 | 50,422
Real Estate Mortgage [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 4,472 | 3,938 | 4,302 | 2,982
Provision charged to expense | 407 | 692 | 892 | 2,247
Losses charged off | 411 | 566 | 833 | 1,217
Recoveries | 17 | 17 | 124 | 69
Ending balance | 4,485 | 4,081 | 4,485 | 4,081
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 | 0
Collectively evaluated for impairment | 4,485 | 4,081 | 4,485 | 4,081
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 666 | 83 | 666 | 83
Collectively evaluated for impairment | 663,663 | 644,696 | 663,663 | 644,696
Home Equity [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 574 | 514 | 562 | 407
Provision charged to expense | 26 | 56 | 119 | 282
Losses charged off | 41 | 44 | 123 | 171
Recoveries | 0 | 7 | 1 | 15
Ending balance | 559 | 533 | 559 | 533
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 | 0
Collectively evaluated for impairment | 559 | 533 | 559 | 533
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 | 0
Collectively evaluated for impairment | 82,724 | 84,173 | 82,724 | 84,173
Consumer Direct [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 857 | 1,067 | 917 | 1,169
Provision charged to expense | (19) | (6) | (67) | 70
Losses charged off | 173 | 261 | 522 | 670
Recoveries | 122 | 141 | 459 | 372
Ending balance | 787 | 941 | 787 | 941
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 | 0
Collectively evaluated for impairment | 787 | 941 | 787 | 941
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 78 | 0 | 78
Collectively evaluated for impairment | 126,005 | 124,363 | 126,005 | 124,363
Consumer Indirect [Member] |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |
Beginning balance | 4,019 | 5,923 | 5,540 | 5,777
Provision charged to expense | 42 | 118 | (756) | 1,446
Losses charged off | 810 | 716 | 2,262 | 2,630
Recoveries | 320 | 351 | 1,049 | 1,083
Ending balance | 3,571 | 5,676 | 3,571 | 5,676
Allowance for Loan Losses Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 | 0
Collectively evaluated for impairment | 3,571 | 5,676 | 3,571 | 5,676
Loans Ending balance: [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 121 | 0 | 121
Collectively evaluated for impairment | $ 298,557 | $ 354,618 | $ 298,557 | $ 354,618

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + 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 (c)(1) -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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