XML 13 R48.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Fair Value Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Carrying (Reported) Amount, Fair Value Disclosure [Member] |  |
Fair Value, Financial Instruments [Line Items] |  |
Fair Value, Financial Instruments, Loans, Net | $ 392,867 | $ 363,344
Fair Value, Financial Instruments, Time Deposits | 268,195 | 281,362
Fair Value, Financial Instruments, Long-term Debt | 47,217 | 85,313
Estimate of Fair Value, Fair Value Disclosure [Member] |  |
Fair Value, Financial Instruments [Line Items] |  |
Fair Value, Financial Instruments, Loans, Net | 400,925 | 371,433
Fair Value, Financial Instruments, Time Deposits | 272,709 | 286,644
Fair Value, Financial Instruments, Long-term Debt | 52,010 | 93,360
Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Financial Instruments [Line Items] |  |
Fair Value, Financial Instruments, Loans, Net | 0 | 0
Fair Value, Financial Instruments, Time Deposits | 0 | 0
Fair Value, Financial Instruments, Long-term Debt | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Financial Instruments [Line Items] |  |
Fair Value, Financial Instruments, Loans, Net | 0 | 0
Fair Value, Financial Instruments, Time Deposits | 272,709 | 286,644
Fair Value, Financial Instruments, Long-term Debt | 52,010 | 93,360
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Financial Instruments [Line Items] |  |
Fair Value, Financial Instruments, Loans, Net | 400,925 | 371,433
Fair Value, Financial Instruments, Time Deposits | 0 | 0
Fair Value, Financial Instruments, Long-term Debt | $ 0 | $ 0

X
- Details
Name: | aubn_FairValueFinancialInstrumentsLineItems
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_FairValueFinancialInstrumentsLoansNet
Namespace Prefix: | aubn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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