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: