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Allowance for Loan Losses Allowance for Loan Loss Activity by Class (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | $ 11,514 | $ 12,500 | $ 12,500
Charge offs | 395 | 1,434 | 5,855
Recoveries | 136 | 154 | 669
Provision for loan losses | 400 | 1,500 | 4,200
Ending balance | 11,655 | 12,720 | 11,514
Ending balance specifically evaluated for impairment | 2,786 | 3,105 | 2,461
Ending balance collectively evaluated for impairment | 8,869 | 9,615 | 9,053
Total | 868,914 | 863,477 | 876,367
Ending balance specifically evaluated for impairment | 40,587 | 47,376 | 42,351
Ending balance collectively evaluated for impairment | 828,327 | 816,101 | 834,016
Commercial Real Estate Portfolio Segment [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 4,602 | 5,865 | 5,865
Charge offs | 20 | 54 | 150
Recoveries | 1 | 0 | 0
Provision for loan losses | (83) | 68 | (1,113)
Ending balance | 4,500 | 5,879 | 4,602
Ending balance specifically evaluated for impairment | 1,019 | 1,473 | 890
Ending balance collectively evaluated for impairment | 3,481 | 4,406 | 3,712
Total | 240,187 | 250,180 | 245,943
Ending balance specifically evaluated for impairment | 15,260 | 17,534 | 14,935
Ending balance collectively evaluated for impairment | 224,927 | 232,646 | 231,008
Commercial Construction [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 575 | 1,359 | 1,359
Charge offs | 0 | 403 | 963
Recoveries | 0 | 0 | 0
Provision for loan losses | 15 | 108 | 179
Ending balance | 590 | 1,064 | 575
Ending balance specifically evaluated for impairment | 276 | 760 | 272
Ending balance collectively evaluated for impairment | 314 | 304 | 303
Total | 21,686 | 17,090 | 20,382
Ending balance specifically evaluated for impairment | 1,492 | 2,347 | 1,284
Ending balance collectively evaluated for impairment | 20,194 | 14,743 | 19,098
Commercial Other [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 2,276 | 2,050 | 2,050
Charge offs | 174 | 288 | 2,583
Recoveries | 64 | 103 | 359
Provision for loan losses | 75 | 250 | 2,450
Ending balance | 2,241 | 2,115 | 2,276
Ending balance specifically evaluated for impairment | 834 | 535 | 841
Ending balance collectively evaluated for impairment | 1,407 | 1,580 | 1,435
Total | 97,276 | 89,874 | 95,289
Ending balance specifically evaluated for impairment | 5,258 | 5,550 | 6,698
Ending balance collectively evaluated for impairment | 92,018 | 84,324 | 88,591
Municipal [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 15 | 18 | 18
Charge offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Provision for loan losses | 0 | 0 | (3)
Ending balance | 15 | 18 | 15
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 15 | 18 | 15
Total | 17,790 | 15,017 | 19,117
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 17,790 | 15,017 | 19,117
Residential Term [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 1,099 | 1,109 | 1,109
Charge offs | 119 | 200 | 1,118
Recoveries | 4 | 2 | 103
Provision for loan losses | 248 | 202 | 1,005
Ending balance | 1,232 | 1,113 | 1,099
Ending balance specifically evaluated for impairment | 574 | 337 | 404
Ending balance collectively evaluated for impairment | 658 | 776 | 695
Total | 372,479 | 376,029 | 377,218
Ending balance specifically evaluated for impairment | 16,924 | 20,262 | 17,786
Ending balance collectively evaluated for impairment | 355,555 | 355,767 | 359,432
Residential Construction [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 21 | 11 | 11
Charge offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Provision for loan losses | 1 | (2) | 10
Ending balance | 22 | 9 | 21
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 22 | 9 | 21
Total | 12,360 | 4,222 | 11,803
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 12,360 | 4,222 | 11,803
Home Equity [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 675 | 654 | 654
Charge offs | 12 | 362 | 611
Recoveries | 1 | 1 | 24
Provision for loan losses | 44 | 566 | 608
Ending balance | 708 | 859 | 675
Ending balance specifically evaluated for impairment | 83 | 0 | 54
Ending balance collectively evaluated for impairment | 625 | 859 | 621
Total | 92,202 | 96,536 | 91,549
Ending balance specifically evaluated for impairment | 1,653 | 1,683 | 1,648
Ending balance collectively evaluated for impairment | 90,549 | 94,853 | 89,901
Consumer Portfolio Segment [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 573 | 592 | 592
Charge offs | 70 | 127 | 430
Recoveries | 66 | 48 | 183
Provision for loan losses | (52) | 61 | 228
Ending balance | 517 | 574 | 573
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 517 | 574 | 573
Total | 14,934 | 14,529 | 15,066
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 14,934 | 14,529 | 15,066
Unallocated Financing Receivables [Member] |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Beginning balance | 1,678 | 842 | 842
Charge offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Provision for loan losses | 152 | 247 | 836
Ending balance | 1,830 | 1,089 | 1,678
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | 1,830 | 1,089 | 1,678
Total | 0 | 0 | 0
Ending balance specifically evaluated for impairment | 0 | 0 | 0
Ending balance collectively evaluated for impairment | $ 0 | $ 0 | $ 0

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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + 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 (a) -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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 + Details
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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References No definition available. + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively 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=28368275&loc=SL6953423-111524 + Details
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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=28368275&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively 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 (h) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables 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 (h) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: 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=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 Reference 3: 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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