XML 56 R45.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Note 7 - Loans Receivable and Credit Disclosures - Amortized Cost Basis of Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Allowance for credit loss | $ 17,203 | $ 16,952 | $ 16,776 | $ 16,319 | $ 16,269 | $ 15,697
Construction Real Estate [Member] |  |  |  |  |  |
Allowance for credit loss | 413 | 453 | 408 | 412 | 391 | 730
Family Residential Real Estate 1-4 [Member] |  |  |  |  |  |
Allowance for credit loss | 3,349 | 3,309 | 3,333 | 3,357 | 3,288 | 3,028
Multifamily [Member] |  |  |  |  |  |
Allowance for credit loss | 2,584 | 2,537 | 2,542 | 2,524 | 2,568 | 2,493
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Allowance for credit loss | 5,530 | 5,494 | 5,236 | 5,033 | 5,206 | 4,742
Agriculture Real Estate [Member] |  |  |  |  |  |
Allowance for credit loss | 1,226 | 1,221 | 1,238 | 1,214 | 1,218 | 1,625
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Allowance for credit loss | 1,912 | 1,913 | 1,955 | 2,014 | 1,784 | 1,153
Agriculture [Member] |  |  |  |  |  |
Allowance for credit loss | 1,710 | 1,588 | 1,607 | 1,358 | 1,392 | 1,705
Consumer and Other [Member] |  |  |  |  |  |
Allowance for credit loss | 479 | $ 437 | 457 | $ 407 | $ 422 | $ 221
Real Estate [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 12,030 |  | 12,577 |  |  |
Real Estate [Member] | Construction Real Estate [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 62 |  | 66 |  |  |
Real Estate [Member] | Family Residential Real Estate 1-4 [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 667 |  | 678 |  |  |
Real Estate [Member] | Multifamily [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 2,020 |  | 2,034 |  |  |
Real Estate [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 8,508 |  | 8,993 |  |  |
Real Estate [Member] | Agriculture Real Estate [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 437 |  | 449 |  |  |
Real Estate [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 111 |  | 118 |  |  |
Real Estate [Member] | Agriculture [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 225 |  | 239 |  |  |
Real Estate [Member] | Consumer and Other [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 0 |  | 0 |  |  |
Equipment [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 11 |  | 669 |  |  |
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 | 2 |  | 0 |  |  |
Equipment [Member] | Agriculture [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 9 |  | 669 |  |  |
Equipment [Member] | Consumer and Other [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 0 |  | 0 |  |  |
Other [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 495 |  | 503 |  |  |
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 | 94 |  | 101 |  |  |
Other [Member] | Agriculture [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 396 |  | 402 |  |  |
Other [Member] | Consumer and Other [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 5 |  | 0 |  |  |
Collateral Pledged [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 12,536 |  | 13,749 |  |  |
Allowance for credit loss | 130 |  | 106 |  |  |
Collateral Pledged [Member] | Construction Real Estate [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 62 |  | 66 |  |  |
Allowance for credit loss | 0 |  | 0 |  |  |
Collateral Pledged [Member] | Family Residential Real Estate 1-4 [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 667 |  | 678 |  |  |
Allowance for credit loss | 0 |  | 10 |  |  |
Collateral Pledged [Member] | Multifamily [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 2,020 |  | 2,034 |  |  |
Allowance for credit loss | 0 |  | 0 |  |  |
Collateral Pledged [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 8,508 |  | 8,993 |  |  |
Allowance for credit loss | 0 |  | 0 |  |  |
Collateral Pledged [Member] | Agriculture Real Estate [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 437 |  | 449 |  |  |
Allowance for credit loss | 0 |  | 0 |  |  |
Collateral Pledged [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 207 |  | 219 |  |  |
Allowance for credit loss | 94 |  | 96 |  |  |
Collateral Pledged [Member] | Agriculture [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 630 |  | 1,310 |  |  |
Allowance for credit loss | 36 |  | 0 |  |  |
Collateral Pledged [Member] | Consumer and Other [Member] |  |  |  |  |  |
Financing Receivable Individually Evaluated For Impairment | 5 |  | 0 |  |  |
Allowance for credit loss | $ 0 |  | $ 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://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph c -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (1) -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (3) -Publisher SEC Reference 5: 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 6: 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 7: 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/1943274/2147478546/942-210-S99-1 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 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: |