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v2.4.1.9

Derivative Instruments (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Derivative [Line Items] |  |
Derivative, Notional Amount1 | $ 9,334 aubn_DerivativeNotionalAmount1 | $ 10,034 aubn_DerivativeNotionalAmount1
DerivativeAssetFairValueGrossAsset | 634 us-gaap_DerivativeFairValueOfDerivativeAsset | 844 us-gaap_DerivativeFairValueOfDerivativeAsset
Derivative Asset, Fair Value, Gross Liability | 634 us-gaap_DerivativeAssetFairValueGrossLiability | 844 us-gaap_DerivativeAssetFairValueGrossLiability
Derivative, Gain (Loss) on Derivative, Net | 0 us-gaap_DerivativeGainLossOnDerivativeNet | 0 us-gaap_DerivativeGainLossOnDerivativeNet
Derivative, Interest Rate Swap, Pay Fixed, Receive Variable [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount1 | 4,667 aubn_DerivativeNotionalAmount1 / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayFixedReceiveVariableMember | 5,017 aubn_DerivativeNotionalAmount1 / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayFixedReceiveVariableMember
DerivativeAssetFairValueGrossAsset | 0 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayFixedReceiveVariableMember | 0 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayFixedReceiveVariableMember
Derivative Asset, Fair Value, Gross Liability | 634 us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayFixedReceiveVariableMember | 844 us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayFixedReceiveVariableMember
Derivative, Gain (Loss) on Derivative, Net | 210 us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayFixedReceiveVariableMember | 366 us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayFixedReceiveVariableMember
Derivative, Interest Rate Swap, Pay Variable, Receive Fixed [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount1 | 4,667 aubn_DerivativeNotionalAmount1 / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayVariableReceiveFixedMember | 5,017 aubn_DerivativeNotionalAmount1 / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayVariableReceiveFixedMember
DerivativeAssetFairValueGrossAsset | 634 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayVariableReceiveFixedMember | 844 us-gaap_DerivativeFairValueOfDerivativeAsset / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayVariableReceiveFixedMember
Derivative Asset, Fair Value, Gross Liability | 0 us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayVariableReceiveFixedMember | 0 us-gaap_DerivativeAssetFairValueGrossLiability / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayVariableReceiveFixedMember
Derivative, Gain (Loss) on Derivative, Net | $ (210)us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayVariableReceiveFixedMember | $ (366)us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = aubn_DerivativeInterestRateSwapPayVariableReceiveFixedMember

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- Definition Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226003-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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