XML 57 R46.htm IDEA: XBRL DOCUMENT v3.25.2

Note 6 - Loans Receivable and Credit Disclosures - Amortized Cost Basis of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Allowance for credit loss	$ 16,971	$ 18,004	$ 17,058	$ 17,203	$ 16,952	$ 16,776
Construction Real Estate [Member]
Allowance for credit loss	481	503	482	413	453	408
Family Residential Real Estate 1-4 [Member]
Allowance for credit loss	3,880	3,850	3,890	3,349	3,309	3,333
Multifamily [Member]
Allowance for credit loss	2,221	2,152	2,188	2,584	2,537	2,542
Commercial Real Estate Portfolio Segment [Member]
Allowance for credit loss	4,508	4,940	4,932	5,530	5,494	5,236
Agriculture Real Estate [Member]
Allowance for credit loss	1,573	1,589	1,584	1,226	1,221	1,238
Commercial Portfolio Segment [Member]
Allowance for credit loss	1,888	2,886	1,759	1,912	1,913	1,955
Agriculture [Member]
Allowance for credit loss	1,991	1,674	1,805	1,710	1,588	1,607
Consumer and Other [Member]
Allowance for credit loss	429	$ 410	418	$ 479	$ 437	$ 457
Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	17,264		13,583
Real Estate [Member] | Construction Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0		62
Real Estate [Member] | Family Residential Real Estate 1-4 [Member]
Financing Receivable Individually Evaluated For Impairment	586		696
Real Estate [Member] | Multifamily [Member]
Financing Receivable Individually Evaluated For Impairment	926		947
Real Estate [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	11,241		10,785
Real Estate [Member] | Agriculture Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	1,480		420
Real Estate [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	450		460
Real Estate [Member] | Agriculture [Member]
Financing Receivable Individually Evaluated For Impairment	2,581		213
Real Estate [Member] | Consumer and Other [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Equipment [Member]
Financing Receivable Individually Evaluated For Impairment	379		398
Equipment [Member] | Construction Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Equipment [Member] | Family Residential Real Estate 1-4 [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Equipment [Member] | Multifamily [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Equipment [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Equipment [Member] | Agriculture Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Equipment [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	379		398
Equipment [Member] | Agriculture [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Equipment [Member] | Consumer and Other [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Other [Member]
Financing Receivable Individually Evaluated For Impairment	1,225		765
Other [Member] | Construction Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Other [Member] | Family Residential Real Estate 1-4 [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Other [Member] | Multifamily [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Other [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Other [Member] | Agriculture Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0		0
Other [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	927		405
Other [Member] | Agriculture [Member]
Financing Receivable Individually Evaluated For Impairment	296		357
Other [Member] | Consumer and Other [Member]
Financing Receivable Individually Evaluated For Impairment	2		3
Collateral Pledged [Member]
Financing Receivable Individually Evaluated For Impairment	18,868		14,746
Allowance for credit loss	466		90
Collateral Pledged [Member] | Construction Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0		62
Allowance for credit loss	0		0
Collateral Pledged [Member] | Family Residential Real Estate 1-4 [Member]
Financing Receivable Individually Evaluated For Impairment	586		696
Allowance for credit loss	0		40
Collateral Pledged [Member] | Multifamily [Member]
Financing Receivable Individually Evaluated For Impairment	926		947
Allowance for credit loss	0		0
Collateral Pledged [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	11,241		10,785
Allowance for credit loss	0		0
Collateral Pledged [Member] | Agriculture Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	1,480		420
Allowance for credit loss	0		0
Collateral Pledged [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	1,756		1,263
Allowance for credit loss	115		50
Collateral Pledged [Member] | Agriculture [Member]
Financing Receivable Individually Evaluated For Impairment	2,877		570
Allowance for credit loss	351		0
Collateral Pledged [Member] | Consumer and Other [Member]
Financing Receivable Individually Evaluated For Impairment	2		3
Allowance for credit loss	$ 0		$ 0

X

- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-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

+ Details

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

X

- Definition

Amount of financing receivable individually evaluated for credit loss. Excludes financing receivable collectively evaluated for credit loss.

+ References

Reference 1: 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

Reference 2: 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

+ Details

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

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:

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: