XML 54 R44.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Loans and Allowance for Credit Losses - Amortized Cost Basis of Collateral-Dependent Loans by Class of Loans Individually Evaluated (Details) $ in Thousands | Sep. 30, 2022 USD ($)
--- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | $ 14,189
Allowance for Credit Losses | 1,259
Agricultural Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 850
Allowance for Credit Losses | 0
Commercial and Industrial Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 1,291
Allowance for Credit Losses | 469
Consumer Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 2
Allowance for Credit Losses | 0
Real Estate |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 11,486
Real Estate | Agricultural Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Real Estate | Commercial and Industrial Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 314
Real Estate | Consumer Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Business Assets |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 2,627
Business Assets | Agricultural Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 850
Business Assets | Commercial and Industrial Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 977
Business Assets | Consumer Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Other Property |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 76
Other Property | Agricultural Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Other Property | Commercial and Industrial Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Other Property | Consumer Loans |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 2
Real Estate Loan |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 12,046
Allowance for Credit Losses | 790
Real Estate Loan | Construction and Land Development |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 457
Allowance for Credit Losses | 230
Real Estate Loan | Agricultural |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 74
Allowance for Credit Losses | 0
Real Estate Loan | Commercial |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 9,434
Allowance for Credit Losses | 477
Real Estate Loan | Real Estate |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 11,172
Real Estate Loan | Real Estate | Construction and Land Development |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 457
Real Estate Loan | Real Estate | Agricultural |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Real Estate Loan | Real Estate | Commercial |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 8,781
Real Estate Loan | Business Assets |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 800
Real Estate Loan | Business Assets | Construction and Land Development |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Real Estate Loan | Business Assets | Agricultural |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Real Estate Loan | Business Assets | Commercial |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 653
Real Estate Loan | Other Property |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 74
Real Estate Loan | Other Property | Construction and Land Development |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Real Estate Loan | Other Property | Agricultural |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 74
Real Estate Loan | Other Property | Commercial |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
1-4 Family | Real Estate Loan | Residential Properties |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 857
Allowance for Credit Losses | 83
1-4 Family | Real Estate Loan | Real Estate | Residential Properties |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 710
1-4 Family | Real Estate Loan | Business Assets | Residential Properties |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 147
1-4 Family | Real Estate Loan | Other Property | Residential Properties |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Multifamily | Real Estate Loan | Residential Properties |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 1,224
Allowance for Credit Losses | 0
Multifamily | Real Estate Loan | Real Estate | Residential Properties |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 1,224
Multifamily | Real Estate Loan | Business Assets | Residential Properties |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | 0
Multifamily | Real Estate Loan | Other Property | Residential Properties |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Financing Receivable, Individually Evaluated for Impairment | $ 0

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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

X
- Details
Name: | us-gaap_CollateralAxis=fmbh_BusinessAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=fmbh_OtherCollateralAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |