Loans (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Loans And Leases Receivable Disclosure
Loans and Leases Receivable, Gross, Commercial	$ 54,329	$ 57,780
Construction And Land Development Loans	37,298	36,479
Commericial Real Estate Loans [Abstract]
Commercial Real Estate Owner Occupied Loans	52,296	56,102
Commerical Real Estate Other Loans	139,710aubn_CommericalRealEstateOtherLoans	118,818aubn_CommericalRealEstateOtherLoans
Total Commercial Real Estate Loans	192,006aubn_CommericialRealEstateLoans	174,920aubn_CommericialRealEstateLoans
Residential Real Estate Loans [Abstract]
Consumer Mortgage Loans	66,489aubn_ConsumerMortgageLoans	57,871aubn_ConsumerMortgageLoans
Residential Real Estate Investment Property Loans	41,152	43,835
Total Residential Real Estate Loans	107,641aubn_ResidentialRealEstateLoans	101,706aubn_ResidentialRealEstateLoans
Consumer Installment And Revolving Loans	12,335	12,893
Loans and Leases Receivable, Gross, Carrying Amount	403,609	383,778
Loans and Leases Receivable Deferred Income	(655)	(439)
Loans, net of unearned income	$ 402,954	$ 383,339

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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

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a, b

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-Publisher FASB

-Name Accounting Standards Codification

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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.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524

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