XML 45 R33.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Deposits (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Deposits: |
Maturities Of Certificates Of Deposit And Other Time Deposits [Table Text Block] |
(Dollars in thousands) | December 31, 2019
2020 |  |  | $ | 92,740
2021 |  |  |  | 25,432
2022 |  |  |  | 36,643
2023 |  |  |  | 5,812
2024 |  |  |  | 6,572
| Total certificates of deposit and other time deposits |  |  | $ | 167,199

X
- References No definition available. + Details
Name: | aubn_MaturitiesOfCertificatesOfDepositAndOtherTimeDepositsTextBlock
Namespace Prefix: | aubn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DepositsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration