XML 21 R47.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Fair Value Unobservable Inputs (Details) - Fair Value, Measurements, Nonrecurring [Member] - Carrying (Reported) Amount, Fair Value Disclosure [Member] $ in Thousands | Sep. 30, 2015 USD ($)
--- | ---
Impaired Loans [Member] |
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items] |
Assets, Fair Value Disclosure | $ 3,445
Impaired Loans [Member] | Appraisal, Appraisal Discount [Member] |
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items] |
Unobservable Input, Weighted Average of Input Percent | 0.244
Other Real Estate Owned [Member] |
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items] |
Assets, Fair Value Disclosure | $ 278
Other Real Estate Owned [Member] | Appraisal, Appraisal Discount [Member] |
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items] |
Unobservable Input, Weighted Average of Input Percent | 0.129
Mortgage Servicing Rights [Member] |
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items] |
Assets, Fair Value Disclosure | $ 2,375
Mortgage Servicing Rights [Member] | Discounted Cash Flow, Prepayment Speed [Member] |
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items] |
Unobservable Input, Weighted Average of Input Percent | 0.102
Mortgage Servicing Rights [Member] | Discounted Cash Flow, Discount Rate [Member] |
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items] |
Unobservable Input, Weighted Average of Input Percent | 0.1

X
- References No definition available. + Details
Name: | aubn_ScheduleOfFairValueSignificantUnobservableInputsUsedLineItems
Namespace Prefix: | aubn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | aubn_UnobservableInputWeightedAverageOfInputPercent
Namespace Prefix: | aubn_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | aubn_FairValueByMeasurementTypeAxis=aubn_ImpairedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | aubn_FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesAxis=aubn_AppraisalAppraisalDiscountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | aubn_FairValueByMeasurementTypeAxis=aubn_OtherRealEstateOwnedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | aubn_FairValueByMeasurementTypeAxis=aubn_MortgageServicingRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | aubn_FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesAxis=aubn_DiscountedCashFlowPrepaymentSpeedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | aubn_FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesAxis=aubn_DiscountedCashFlowDiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |