XML 71 R59.htm IDEA: XBRL DOCUMENT v3.22.4

Cash and Due from Banks Cash and Due from Banks (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Cash and Cash Equivalents [Abstract]
Cash uninsured amount	$ 35,900
Loss on cash uninsured	$ 0

X

- Definition

Loss on cash uninsured.

+ References

No definition available.

+ Details

Name:	fmbh_LossOnCashUninsured
Namespace Prefix:	fmbh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

+ References

No definition available.

+ Details

Name:	us-gaap_CashUninsuredAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant