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Trouble Debt Restructing Defaults (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015
Financing Receivable Modifications Subsequent Default [Line Items] |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 2us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $ 411us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Commercial Real Estate Owner Occupied Loans [Member] |
Financing Receivable Modifications Subsequent Default [Line Items] |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateOwnerOccupiedLoansMember
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | 261us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateOwnerOccupiedLoansMember
Commercial Real Estate Loans, Total [Member] |
Financing Receivable Modifications Subsequent Default [Line Items] |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateLoansTotalMember
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | 261us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateLoansTotalMember
Residential Real Estate Investment Property Loans [Member] |
Financing Receivable Modifications Subsequent Default [Line Items] |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_ResidentialRealEstateInvestmentPropertyLoansMember
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | 150us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_ResidentialRealEstateInvestmentPropertyLoansMember
Residential Real Estate Loans, Total [Member] |
Financing Receivable Modifications Subsequent Default [Line Items] |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_ResidentialRealEstateLoansTotalMember
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | $ 150us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_ResidentialRealEstateLoansTotalMember

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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524 + Details
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