v3.26.1
Note 1 - Principles of Consolidation (Details Textual)
6 Months Ended
Jun. 30, 2026
First Community Bankers Insurance Co., LLC [Member]
Percentage of Ownership
100.00%
X
- Definition
The percentage of ownership owned by the company.
+ References
No definition available.
+ Details
Name:
fmfg_PercentageOfOwnership
Namespace Prefix:
fmfg_
Data Type:
dtr-types:percentItemType
Balance Type:
na
Period Type:
duration
X
- Details
Name:
srt_OwnershipAxis=fmfg_FirstCommunityBankersInsuranceCoLLCMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type: