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Allowance for Loan Losses (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | --- | --- | ---
Ending allowance balance attributable to loans: |  |  |  |  |  |
Individually evaluated for impairment | $ 1,394 |  | $ 1,529 |  |  |
Collectively evaluated for impairment | 3,672 |  | 3,393 |  |  |
Acquired with deteriorated credit quality | 0 |  | 0 |  |  |
Ending balance | 5,066 | 5,011 | 4,922 | 4,835 | 4,792 | 4,736
Residential |  |  |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |  |  |
Individually evaluated for impairment | 61 |  | 112 |  |  |
Collectively evaluated for impairment | 782 |  | 699 |  |  |
Acquired with deteriorated credit quality | 0 |  | 0 |  |  |
Ending balance | 843 | 838 | 811 | 905 | 940 | 922
Land |  |  |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 153 |  | 152 |  |  |
Acquired with deteriorated credit quality | 0 |  | 0 |  |  |
Ending balance | 153 | 144 | 152 | 73 | 69 | 71
Construction |  |  |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 78 |  | 63 |  |  |
Acquired with deteriorated credit quality | 0 |  | 0 |  |  |
Ending balance | 78 | 70 | 63 | 60 | 50 | 0
Commercial Real Estate |  |  |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |  |  |
Individually evaluated for impairment | 107 |  | 145 |  |  |
Collectively evaluated for impairment | 1,173 |  | 1,139 |  |  |
Acquired with deteriorated credit quality | 0 |  | 0 |  |  |
Ending balance | 1,280 | 1,276 | 1,284 | 1,291 | 1,291 | 1,310
Commercial Business |  |  |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |  |  |
Individually evaluated for impairment | 1,226 |  | 1,259 |  |  |
Collectively evaluated for impairment | 218 |  | 187 |  |  |
Acquired with deteriorated credit quality | 0 |  | 0 |  |  |
Ending balance | 1,444 | 1,450 | 1,446 | 1,260 | 1,226 | 1,223
Home Equity and Second Mortgage |  |  |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 13 |  |  |
Collectively evaluated for impairment | 932 |  | 864 |  |  |
Acquired with deteriorated credit quality | 0 |  | 0 |  |  |
Ending balance | 932 | 902 | 877 | 894 | 886 | 919
Other Consumer |  |  |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 336 |  | 289 |  |  |
Acquired with deteriorated credit quality | 0 |  | 0 |  |  |
Ending balance | $ 336 | $ 331 | $ 289 | $ 352 | $ 330 | $ 291

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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=28368275&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables acquired with deteriorated credit quality. + 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 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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