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Loans (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014 | Mar. 31, 2014
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Loans And Leases Receivable Disclosure |  |  |
Loans and Leases Receivable, Gross, Commercial | $ 52,536us-gaap_LoansAndLeasesReceivableCommercial | $ 54,329us-gaap_LoansAndLeasesReceivableCommercial |
Construction And Land Development Loans | 37,925aubn_ConstructionAndLandDevelopmentLoans | 37,298aubn_ConstructionAndLandDevelopmentLoans |
Commericial Real Estate Loans [Abstract] |  |  |
Commercial Real Estate Owner Occupied Loans | 43,356aubn_CommercialRealEstateOwnerOccupiedLoans | 52,296aubn_CommercialRealEstateOwnerOccupiedLoans |
Commerical Real Estate Other Loans | 139,515aubn_CommericalRealEstateOtherLoans | 139,710aubn_CommericalRealEstateOtherLoans |
Total Commercial Real Estate Loans | 182,871aubn_CommericialRealEstateLoans | 192,006aubn_CommericialRealEstateLoans |
Residential Real Estate Loans [Abstract] |  |  |
Consumer Mortgage Loans | 65,997aubn_ConsumerMortgageLoans | 66,489aubn_ConsumerMortgageLoans |
Residential Real Estate Investment Property Loans | 45,268aubn_ResidentialRealEstateInvestmentPropertyLoans | 41,152aubn_ResidentialRealEstateInvestmentPropertyLoans |
Total Residential Real Estate Loans | 111,265aubn_ResidentialRealEstateLoans | 107,641aubn_ResidentialRealEstateLoans |
Consumer Installment And Revolving Loans | 12,478aubn_ConsumerInstallmentAndRevolvingLoans | 12,335aubn_ConsumerInstallmentAndRevolvingLoans |
Loans and Leases Receivable, Gross, Carrying Amount | 397,075us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | 403,609us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | 377,827us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Loans and Leases Receivable Deferred Income | (462)aubn_LoansAndLeasesReceivableDeferredIncome1 | (655)aubn_LoansAndLeasesReceivableDeferredIncome1 |
Loans, net of unearned income | $ 396,613us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome | $ 402,954us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome |

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- Definition Amount before allowance of commercial loans and leases receivable includes, but not limited to, commercial and industrial loans, agricultural loans, mortgage loans, promissory notes, interbank and other loans to financial institutions, draws against credit facilities, trade financing, lease financings. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes 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 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph a, b -Article 9 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(a),(b)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes 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 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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