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Trouble Debt Restructing Modified (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015
Financing Receivable Trouble Debt Restructing Modifications [Line Items] |
Modification number of contracts | 2us-gaap_FinancingReceivableModificationsNumberOfContracts2
Pre-modification outstanding recorded investment | $ 708us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Post -modification outstanding recorded investment | 705us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Construction And Land Development Loans [Member] |
Financing Receivable Trouble Debt Restructing Modifications [Line Items] |
Modification number of contracts | 1us-gaap_FinancingReceivableModificationsNumberOfContracts2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_ConstructionAndLandDevelopmentLoansMember
Pre-modification outstanding recorded investment | 116us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_ConstructionAndLandDevelopmentLoansMember
Post -modification outstanding recorded investment | 113us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_ConstructionAndLandDevelopmentLoansMember
Commercial Real Estate Other Loans [Member] |
Financing Receivable Trouble Debt Restructing Modifications [Line Items] |
Modification number of contracts | 1us-gaap_FinancingReceivableModificationsNumberOfContracts2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateOtherLoansMember
Pre-modification outstanding recorded investment | 592us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateOtherLoansMember
Post -modification outstanding recorded investment | 592us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateOtherLoansMember
Commercial Real Estate Loans, Total [Member] |
Financing Receivable Trouble Debt Restructing Modifications [Line Items] |
Modification number of contracts | 1us-gaap_FinancingReceivableModificationsNumberOfContracts2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateLoansTotalMember
Pre-modification outstanding recorded investment | 592us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateLoansTotalMember
Post -modification outstanding recorded investment | $ 592us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2 / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = aubn_CommercialRealEstateLoansTotalMember

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524 + Details
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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524 + Details
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