XML 83 R74.htm IDEA: XBRL DOCUMENT v3.24.0.1

Loans and Allowance for Credit Losses - Performance of Loans Modified (Details) $ in Thousands	Dec. 31, 2023 USD ($)
30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	$ 34
60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0
90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0
Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	34
Consumer Loans | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	25
Consumer Loans | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0
Consumer Loans | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0
Consumer Loans | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	25
Commercial and Industrial Loans | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	9
Commercial and Industrial Loans | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0
Commercial and Industrial Loans | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0
Commercial and Industrial Loans | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	$ 9

X

- Definition

Financing receivable modifications performance recorded investment.

+ References

No definition available.

+ Details

Name:	fmbh_FinancingReceivableModificationsPerformanceRecordedInvestment
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

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerLoanMember
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: