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