XML 80 R65.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Note 4 - Loans Receivable and Credit Disclosures - Modified Loans (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Number of contracts |  | 1
Pre-modification outstanding recorded investment |  | $ 118
Financing Receivable, Modified |  | $ 118
Construction Real Estate [Member] |  |
Number of contracts |  | 0
Pre-modification outstanding recorded investment |  | $ 0
Financing Receivable, Modified |  | $ 0
Family Residential Real Estate 1-4 [Member] |  |
Number of contracts |  | 1
Pre-modification outstanding recorded investment |  | $ 118
Financing Receivable, Modified |  | $ 118
Commercial Real Estate Portfolio Segment [Member] |  |
Number of contracts |  | 0
Pre-modification outstanding recorded investment |  | $ 0
Financing Receivable, Modified |  | $ 0
Agriculture Real Estate [Member] |  |
Number of contracts |  | 0
Pre-modification outstanding recorded investment |  | $ 0
Financing Receivable, Modified |  | $ 0
Commercial Portfolio Segment [Member] |  |
Number of contracts |  | 0
Pre-modification outstanding recorded investment |  | $ 0
Financing Receivable, Modified |  | $ 0
Agriculture [Member] |  |
Number of contracts |  | 0
Pre-modification outstanding recorded investment |  | $ 0
Financing Receivable, Modified | $ 336 | $ 0
Consumer and Other [Member] |  |
Number of contracts |  | 0
Pre-modification outstanding recorded investment |  | $ 0
Financing Receivable, Modified |  | $ 0

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References No definition available. + Details
Name: | atlo_FinancingReceivableModificationsNumberOfContracts
Namespace Prefix: | atlo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before troubled debt restructuring, of financing receivable to be modified. + References No definition available. + Details
Name: | atlo_FinancingReceivableTroubledDebtRestructuringPremodification
Namespace Prefix: | atlo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=atlo_ConstructionRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=atlo_FamilyResidentialRealEstate14Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=atlo_AgricultureRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=atlo_AgricultureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=atlo_ConsumerAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |