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Allowance for Loan Losses Narrative (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014 | Jun. 30, 2015 | Sep. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Allowance for loan and lease losses, percent | 0.42% | 0.39% |  |  |  |
Allowance for loan and lease losses, period increase (decrease) | $ 465 | $ 465 |  |  |  |
Less allowance for loan losses | $ 9,677 | $ 10,344 | $ 9,908 | $ 11,641 | $ 11,644 | $ 11,514
Allowance for loan losses as a percent of total loans | 1.00% | 1.13% |  | 1.28% |  |
Residential loans typical loan to value range, high | 80.00% |  |  |  |  |
Construction loans accrual to company capital | 25.00% |  |  |  |  |
Constructions loan portfolio maximum to company capital | 100.00% |  |  |  |  |
Construction and non owner occupied commercial real estate | 99.10% |  |  |  |  |
Maximum loan portfolio to company capital | 300.00% |  |  |  |  |
Outstanding loans and commitments subject by independent consulting firm | 50.00% |  |  |  |  |
Loan value, lower range | 75.00% |  |  |  |  |
Collateralized consumer loans to individuals loan to value maximum, lower range | 80.00% |  |  |  |  |
Collateralized consumer loans to individuals loan to value maximum, higher range | 90.00% |  |  |  |  |
Consumer |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Delinquent period before residential loans placed on non accrual status | 120 days |  |  |  |  |
Residential construction |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Less allowance for loan losses | $ 22 | $ 20 | $ 27 | $ 20 | $ 23 | $ 21
Delinquent period before residential loans placed on non accrual status | 90 days |  |  |  |  |
Unallocated Reserves |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Less allowance for loan losses | $ 1,926 | $ 1,662 |  | $ 2,113 |  |
Percent of total reserve allowance accounted for by loan loss allowances | 19.90% | 16.10% |  |  |  |

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- Definition Allowance for Loan and Lease Losses, Related Loans, Percentage + References No definition available. + Details
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- Definition Allowance for Loan and Lease Losses, Related Loans, Period Increase (Decrease) + References No definition available. + Details
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- Definition The high maximum percentage of loan to value for consumer loans based on purchase price of the collateral. + References No definition available. + Details
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- Definition The regulatory maximum allowed ratio of loan portfolio to Company capital for construction and non-owner-occupied commercial real estate. + References No definition available. + Details
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- Definition The actual ratio of loan amount to Company capital for construction and non-owner-occupied commercial real estate. + References No definition available. + Details
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- Definition The regulatory maximum allowed ratio of loan portfolio to Company capital for construction loans. + References No definition available. + 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 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 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)(1) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 Reference 3: 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 4: 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 5: 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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