XML 56 R46.htm IDEA: XBRL DOCUMENT
v3.23.1

Loans - Loan Balances Based on Year of Origination (Details) $ in Thousands | Mar. 31, 2023 USD ($)
--- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |
Gross charge-offs - fiscal year 2023 | $ 73
Gross charge-offs - fiscal year 2022 | 13
Gross charge-offs - fiscal year 2021 | 7
Gross charge-offs - fiscal year 2020 | 29
Gross charge-offs - Term Total | 122
Gross charge-offs - Grand Total | 122
Consumer Real Estate [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 23,642
2022 | 103,775
2021 | 99,363
2020 | 88,874
Prior | 142,193
Term Total | 457,847
Revolving Loans Amortized Cost Basis | 45,121
Grand Total | 502,968
Consumer Real Estate [Member] | Pass [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 23,642
2022 | 103,775
2021 | 98,956
2020 | 88,874
Prior | 140,856
Term Total | 456,103
Revolving Loans Amortized Cost Basis | 45,103
Grand Total | 501,206
Consumer Real Estate [Member] | Special Mention [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Prior | 559
Term Total | 559
Grand Total | 559
Consumer Real Estate [Member] | Substandard [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2021 | 407
Prior | 778
Term Total | 1,185
Revolving Loans Amortized Cost Basis | 18
Grand Total | 1,203
Agricultural Real Estate [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 12,810
2022 | 41,101
2021 | 40,232
2020 | 27,601
Prior | 105,758
Term Total | 227,502
Revolving Loans Amortized Cost Basis | 97
Grand Total | 227,599
Agricultural Real Estate [Member] | Pass [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 12,810
2022 | 40,851
2021 | 38,036
2020 | 27,066
Prior | 91,794
Term Total | 210,557
Revolving Loans Amortized Cost Basis | 97
Grand Total | 210,654
Agricultural Real Estate [Member] | Special Mention [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2021 | 686
2020 | 346
Prior | 6,947
Term Total | 7,979
Grand Total | 7,979
Agricultural Real Estate [Member] | Substandard [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2022 | 250
2021 | 1,510
2020 | 189
Prior | 7,017
Term Total | 8,966
Grand Total | 8,966
Agricultural [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 11,106
2022 | 28,922
2021 | 12,985
2020 | 5,517
Prior | 7,226
Term Total | 65,756
Revolving Loans Amortized Cost Basis | 65,921
Grand Total | 131,677
Agricultural [Member] | Pass [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 11,106
2022 | 28,922
2021 | 12,985
2020 | 5,433
Prior | 7,226
Term Total | 65,672
Revolving Loans Amortized Cost Basis | 65,920
Grand Total | 131,592
Agricultural [Member] | Special Mention [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
Revolving Loans Amortized Cost Basis | 1
Grand Total | 1
Agricultural [Member] | Substandard [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2020 | 84
Term Total | 84
Grand Total | 84
Commercial Real Estate [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 90,041
2022 | 440,755
2021 | 262,208
2020 | 142,221
Prior | 287,938
Term Total | 1,223,163
Grand Total | 1,223,163
Commercial Real Estate [Member] | Pass [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 89,943
2022 | 440,142
2021 | 262,208
2020 | 131,449
Prior | 265,358
Term Total | 1,189,100
Grand Total | 1,189,100
Commercial Real Estate [Member] | Special Mention [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2020 | 10,697
Prior | 1,292
Term Total | 11,989
Grand Total | 11,989
Commercial Real Estate [Member] | Substandard [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 98
2022 | 613
2020 | 75
Prior | 21,288
Term Total | 22,074
Grand Total | 22,074
Commercial & Industrial [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 17,761
2022 | 63,566
2021 | 34,636
2020 | 30,431
Prior | 7,493
Term Total | 153,887
Revolving Loans Amortized Cost Basis | 87,647
Grand Total | 241,534
Commercial & Industrial [Member] | Pass [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 17,561
2022 | 63,073
2021 | 33,720
2020 | 29,328
Prior | 6,634
Term Total | 150,316
Revolving Loans Amortized Cost Basis | 85,496
Grand Total | 235,812
Commercial & Industrial [Member] | Special Mention [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 200
2021 | 221
2020 | 159
Prior | 481
Term Total | 1,061
Revolving Loans Amortized Cost Basis | 195
Grand Total | 1,256
Commercial & Industrial [Member] | Substandard [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2022 | 493
2021 | 695
2020 | 944
Prior | 378
Term Total | 2,510
Revolving Loans Amortized Cost Basis | 1,956
Grand Total | 4,466
Consumer [Member] | Payment Performance [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 8,901
2022 | 53,708
2021 | 15,170
2020 | 7,780
Prior | 4,778
Term Total | 90,337
Revolving Loans Amortized Cost Basis | 51
Grand Total | 90,388
Consumer [Member] | Performing [Member] | Payment Performance [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2023 | 8,901
2022 | 53,708
2021 | 15,151
2020 | 7,780
Prior | 4,776
Term Total | 90,316
Revolving Loans Amortized Cost Basis | 51
Grand Total | 90,367
Consumer [Member] | Nonperforming [Member] | Payment Performance [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2021 | 19
Prior | 2
Term Total | 21
Grand Total | 21
Other Loan [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2022 | 200
2021 | 17,526
2020 | 6,341
Prior | 5,256
Term Total | 29,323
Grand Total | 29,323
Other Loan [Member] | Pass [Member] |
Financing Receivable, Credit Quality Indicator [Line Items] |
2022 | 200
2021 | 17,526
2020 | 6,341
Prior | 5,256
Term Total | 29,323
Grand Total | $ 29,323

X
- Definition Financing receivable allowance for credi tlosses writeoffs in current fiscal year. + References No definition available. + Details
Name: | fmao_FinancingReceivableAllowanceForCrediTlossesWriteoffsInCurrentFiscalYear
Namespace Prefix: | fmao_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivable allowance for credit losses writeoffs fiscal year before current fiscal year. + References No definition available. + Details
Name: | fmao_FinancingReceivableAllowanceForCreditLossesWriteoffsFiscalYearBeforeCurrentFiscalYear
Namespace Prefix: | fmao_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivable allowance for credit losses writeoffs grand net. + References No definition available. + Details
Name: | fmao_FinancingReceivableAllowanceForCreditLossesWriteoffsGrandNet
Namespace Prefix: | fmao_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivable allowance for credit losses writeoffs term total. + References No definition available. + Details
Name: | fmao_FinancingReceivableAllowanceForCreditLossesWriteoffsTermTotal
Namespace Prefix: | fmao_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivable allowance for credit losses writeoffs three years before latest fiscal year. + References No definition available. + Details
Name: | fmao_FinancingReceivableAllowanceForCreditLossesWriteoffsThreeYearsBeforeLatestFiscalYear
Namespace Prefix: | fmao_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivable allowance for credit losses writeoffs two years before latest fiscal year. + References No definition available. + Details
Name: | fmao_FinancingReceivableAllowanceForCreditLossesWriteoffsTwoYearsBeforeLatestFiscalYear
Namespace Prefix: | fmao_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivable originated four or more years before latest fiscal year. + References No definition available. + Details
Name: | fmao_FinancingReceivableOriginatedFourOrMoreYearsBeforeLatestFiscalYear
Namespace Prefix: | fmao_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivable term loan. + References No definition available. + Details
Name: | fmao_FinancingReceivableTermLoan
Namespace Prefix: | fmao_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919232-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919232-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953401-111524 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922355-210448 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1404 -Paragraph (a) + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fmao_PaymentPerformanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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