XML 36 R23.htm IDEA: XBRL DOCUMENT v2.4.0.6

Loans (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Commercial real estate [Member]
Distribution of fixed rate loans and variable rate loans by major loan category
Distribution of fixed rate loans by major loan category, Fixed Rate	$ 84,505
Distribution of variable rate loans by major loan category, Variable Rate	118,395
Agricultural Real Estate [Member]
Distribution of fixed rate loans and variable rate loans by major loan category
Distribution of fixed rate loans by major loan category, Fixed Rate	9,787
Distribution of variable rate loans by major loan category, Variable Rate	22,621
Consumer real estate [Member]
Distribution of fixed rate loans and variable rate loans by major loan category
Distribution of fixed rate loans by major loan category, Fixed Rate	10,215
Distribution of variable rate loans by major loan category, Variable Rate	68,321
Commercial/Industrial [Member]
Distribution of fixed rate loans and variable rate loans by major loan category
Distribution of fixed rate loans by major loan category, Fixed Rate	11,184
Distribution of variable rate loans by major loan category, Variable Rate	70,068
Agricultural [Member]
Distribution of fixed rate loans and variable rate loans by major loan category
Distribution of fixed rate loans by major loan category, Fixed Rate	3,470
Distribution of variable rate loans by major loan category, Variable Rate	51,338
Consumer [Member]
Distribution of fixed rate loans and variable rate loans by major loan category
Distribution of fixed rate loans by major loan category, Fixed Rate	676
Distribution of variable rate loans by major loan category, Variable Rate	20,901
Industrial Development Bonds [Member]
Distribution of fixed rate loans and variable rate loans by major loan category
Distribution of fixed rate loans by major loan category, Fixed Rate	0
Distribution of variable rate loans by major loan category, Variable Rate	$ 1,199

X

- Details

Name:	fmao_DistributionOfFixedRateLoanAndVariableRateLoanByMajorLoanCategoryAbstract
Namespace Prefix:	fmao_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Reflects the carrying amount of loans charging borrowers fixed rates of interest.

+ References

No definition available.

+ Details

Name:	us-gaap_LoansReceivableWithFixedRatesOfInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Reflects the carrying amount of loans charging borrowers variable, or adjustable, rates of interest.

+ References

No definition available.

+ Details

Name:	us-gaap_LoansReceivableWithVariableRatesOfInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant