XML 73 R58.htm IDEA: XBRL DOCUMENT v3.24.0.1

Note 4 - Loans Receivable and Credit Disclosures - Amortized Cost Basis of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Ending loans receiveable balance: Individually evaluated for credit losses		$ 14,386
Allowance for credit loss	$ 16,776	15,697	$ 16,621
Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	12,577
Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	669
Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	503
Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	13,749
Allowance for credit loss	106
Construction Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses		0
Allowance for credit loss	408	730	675
Construction Real Estate [Member] | Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	66
Construction Real Estate [Member] | Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Construction Real Estate [Member] | Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Construction Real Estate [Member] | Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	66
Allowance for credit loss	0
Family Residential Real Estate 1-4 [Member]
Ending loans receiveable balance: Individually evaluated for credit losses		805
Allowance for credit loss	3,333	3,028	2,752
Family Residential Real Estate 1-4 [Member] | Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	678
Family Residential Real Estate 1-4 [Member] | Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Family Residential Real Estate 1-4 [Member] | Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Family Residential Real Estate 1-4 [Member] | Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	678
Allowance for credit loss	10
Multifamily [Member]
Ending loans receiveable balance: Individually evaluated for credit losses		0
Allowance for credit loss	2,542	2,493	2,501
Multifamily [Member] | Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	2,034
Multifamily [Member] | Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Multifamily [Member] | Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Multifamily [Member] | Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	2,034
Allowance for credit loss	0
Commercial Real Estate Portfolio Segment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses		12,853
Allowance for credit loss	5,236	4,742	5,905
Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	8,993
Commercial Real Estate Portfolio Segment [Member] | Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Commercial Real Estate Portfolio Segment [Member] | Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Commercial Real Estate Portfolio Segment [Member] | Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	8,993
Allowance for credit loss	0
Agriculture Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses		165
Allowance for credit loss	1,238	1,625	1,584
Agriculture Real Estate [Member] | Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	449
Agriculture Real Estate [Member] | Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Agriculture Real Estate [Member] | Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Agriculture Real Estate [Member] | Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	449
Allowance for credit loss	0
Commercial Portfolio Segment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses		200
Allowance for credit loss	1,955	1,153	1,170
Commercial Portfolio Segment [Member] | Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	118
Commercial Portfolio Segment [Member] | Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Commercial Portfolio Segment [Member] | Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	101
Commercial Portfolio Segment [Member] | Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	219
Allowance for credit loss	96
Agriculture [Member]
Ending loans receiveable balance: Individually evaluated for credit losses		342
Allowance for credit loss	1,607	1,705	1,836
Agriculture [Member] | Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	239
Agriculture [Member] | Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	669
Agriculture [Member] | Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	402
Agriculture [Member] | Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	1,310
Allowance for credit loss	0
Consumer and Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses		21
Allowance for credit loss	457	$ 221	$ 198
Consumer and Other [Member] | Real Estate [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Consumer and Other [Member] | Equipment [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Consumer and Other [Member] | Other [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Consumer and Other [Member] | Collateral Pledged [Member]
Ending loans receiveable balance: Individually evaluated for credit losses	0
Allowance for credit loss	$ 0

X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (1)
-Publisher SEC

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (3)
-Publisher SEC

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (c)
-Publisher SEC

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-SubTopic 10
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11C
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L(5)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4

+ Details

Name:	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_RealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_EquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=atlo_OtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_CollateralPledgedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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=srt_MultifamilyMember
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: