XML 85 R73.htm IDEA: XBRL DOCUMENT
v3.22.4

Loans and Allowance for Credit Losses - Recorded Balance of Troubled Debt Restructurings (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | $ 5,064 | $ 5,792
Financing Receivable Modifications Performing Recorded Investment | 3,214 | 3,931
Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 4,435 | 4,953
Financing Receivable Modifications Performing Recorded Investment | 3,018 | 3,679
Agricultural Real Estate Loans | Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 351 | 245
Financing Receivable Modifications Performing Recorded Investment | 233 | 245
Residential Properties | Real Estate Loan | 1-4 Family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 1,165 | 1,353
Financing Receivable Modifications Performing Recorded Investment | 846 | 882
Commercial | Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 2,919 | 3,355
Financing Receivable Modifications Performing Recorded Investment | 1,939 | 2,552
Agricultural Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 0 | 228
Commercial and Industrial Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 591 | 479
Financing Receivable Modifications Performing Recorded Investment | 159 | 179
Consumer Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 38 | 109
Financing Receivable Modifications Performing Recorded Investment | 37 | 50
All Other Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 0 | 23
Financing Receivable Modifications Performing Recorded Investment | $ 0 | $ 23

X
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings and are still accruing interest. + References No definition available. + Details
Name: | fmbh_FinancingReceivableModificationsPerformingRecordedInvestment
Namespace Prefix: | fmbh_
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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_AgriculturalRealEstateLoansMember
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=fmbh_OneToFourFamilyMember
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=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_FinancingReceivablePortfolioSegmentAxis=us-gaap_UnallocatedFinancingReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |