XML 56 R42.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Long-Term Borrowings (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Debt Disclosure [Abstract] |
Summary of Long-term Advances from the Federal Home Loan Bank | At year end, long-term advances from the FHLB were as follows:
|  | 2017 |  |  | 2016 |
|  |  |  |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  |  |  | Average |  |  |  |  |  |  | Average |
|  | Amount |  |  | Rate |  |  | Amount |  |  | Rate |
Fixed-rate constant payment advance, at rates from 1.20% to 1.70% at December 31, 2017 and 2016 |  | $ | 4,785 |  |  |  | 1.70 | % |  | $ | 7,876 |  |  |  | 1.57 | %
Convertible and putable fixed-rate advance with a rate of 4.45% at December 31, 2016 |  |  | 0 |  |  |  | 0.00 | % |  |  | 5,000 |  |  |  | 4.45 | %
Total advances |  | $ | 4,785 |  |  |  | 1.70 | % |  | $ | 12,876 |  |  |  | 2.69 | %
Schedule Of Federal Home Loan Bank Advances Maturities Table Text Block | Scheduled payments of long-term FHLB advances are as follows:
Maturing in: |  |  |  |
2018 |  | $ | 1,075 |
2019 |  |  | 931 |
2020 |  |  | 860 |
2021 |  |  | 792 |
2022 |  |  | 729 |
Thereafter |  |  | 398 |
TOTAL |  | $ | 4,785 |

X
- Definition Schedule of federal home loan bank advances maturities. + References No definition available. + Details
Name: | fmnb_ScheduleOfFederalHomeLoanBankAdvancesMaturitiesTableTextBlock
Namespace Prefix: | fmnb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of advances made and reported by Federal Home Loan Bank (FHLBank). + References No definition available. + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration