XML 32 R41.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Loans Textuals (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Loan and Lease Disclosure (Textuals) [Abstract] |  |  |  |
Percentage Of Loans Secured By Real Estate | 0.814 |  | 0.814 |
Financing Receivables, Troubled Debt Restructuring, Charge-off Of B Notes | $ 0 | $ 0.90 | $ 0 | $ 0.90

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | aubn_FinancingReceivablesTroubledDebtRestructuringChargeOffOfBNotes
Namespace Prefix: | aubn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | aubn_LoanAndLeaseDisclosureTextualsAbstract
Namespace Prefix: | aubn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | aubn_PercentageOfLoansSecuredByRealEstate
Namespace Prefix: | aubn_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant