XML 58 R29.htm IDEA: XBRL DOCUMENT
v3.19.3

Allowance For Loan Loss Additional Information (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018 | Sep. 30, 2018
--- | --- | --- | ---
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | $ 4,807 |  | $ 4,785
Financing Receivable, Collectively Evaluated for Impairment | 465,596 |  | 460,102
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 |  | 0
Financing Receivable, Individually Evaluated for Impairment | 0 |  | 858
Allowance for loan losses | 4,807 | $ 4,790 | 4,785
Loans and Leases Receivable, Gross, Carrying Amount | 465,596 | 477,477 | 460,960
Commercial and Industrial Loans [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 685 |  | 544
Financing Receivable, Collectively Evaluated for Impairment | 52,288 |  | 52,430
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 |  | 0
Financing Receivable, Individually Evaluated for Impairment | 0 |  | 0
Allowance for loan losses | 685 |  | 544
Loans and Leases Receivable, Gross, Carrying Amount | 52,288 | 63,467 | 52,430
Construction And Land Development Loans [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 730 |  | 836
Financing Receivable, Collectively Evaluated for Impairment | 41,599 |  | 45,109
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 |  | 0
Financing Receivable, Individually Evaluated for Impairment | 0 |  | 0
Allowance for loan losses | 730 |  | 836
Loans and Leases Receivable, Gross, Carrying Amount | 41,599 | 40,222 | 45,109
Commercial Real Estate Loans, Total [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 2,354 |  | 2,241
Financing Receivable, Collectively Evaluated for Impairment | 267,346 |  | 249,292
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 |  | 0
Financing Receivable, Individually Evaluated for Impairment | 0 |  | 858
Allowance for loan losses | 2,354 |  | 2,241
Loans and Leases Receivable, Gross, Carrying Amount | 267,346 | 261,896 | 250,150
Residential Real Estate Loans, Total [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 890 |  | 997
Financing Receivable, Collectively Evaluated for Impairment | 95,215 |  | 103,329
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 |  | 0
Financing Receivable, Individually Evaluated for Impairment | 0 |  | 0
Allowance for loan losses | 890 |  | 997
Loans and Leases Receivable, Gross, Carrying Amount | 95,215 | 102,597 | 103,329
Consumer Installment and Revolving Loans [Member] |  |  |
Financing Receivable Allowance For Credit Loss Additional Information [Line Items] |  |  |
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment | 148 |  | 167
Financing Receivable, Collectively Evaluated for Impairment | 9,148 |  | 9,942
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 |  | 0
Financing Receivable, Individually Evaluated for Impairment | 0 |  | 0
Allowance for loan losses | 148 |  | 167
Loans and Leases Receivable, Gross, Carrying Amount | $ 9,148 | $ 9,295 | $ 9,942

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

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 + Details
Name: | us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_CommercialAndIndustrialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_ConstructionAndLandDevelopmentLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_CommercialRealEstateLoansTotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_ResidentialRealEstateLoansTotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=aubn_ConsumerInstallmentAndRevolvingLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |