Note 7 - Loans and Allowance for Loan Losses (Details) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Note 7 - Loans and Allowance for Loan Losses (Details) [Line Items]
Allowance for Credit Losses, Change in Method of Calculating Impairment	$ 1,700,000	$ 2,200,000
Loans and Leases Receivable, Impaired, Commitment to Lend	0	0
Financing Receivable, Modifications, Number of Contracts	0	0
Financing Receivable, Modifications, Purchase Price Discount	428,000
Financing Receivable, Modifications, Discount in Percentage	15.00%
Financing Receivable, Remaining Discount Accretion Period	4 months
Financing Receivable, Modifications, Recorded Investment	25,833,000	24,429,000
Percent of Total Restructured Loans	44.30%ffkt_PercentOfTotalRestructuredLoans
TDR Financing Receivable [Member]
Note 7 - Loans and Allowance for Loan Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 11,400,000

Represents the purchase price discount as a percentage of the purchased principal amount.

No definition available.

Name:	ffkt_FinancingReceivableModificationsDiscountInPercentage
Namespace Prefix:	ffkt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the purchase price discount of troubled debt restructurings.

+ References

No definition available.

+ Details

Name:	ffkt_FinancingReceivableModificationsPurchasePriceDiscount
Namespace Prefix:	ffkt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Remaining accretion period for discount on troubled debt restructurings purchased, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	ffkt_FinancingReceivableRemainingDiscountAccretionPeriod
Namespace Prefix:	ffkt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ffkt_Note7LoansandAllowanceforLoanLossesDetailsLineItems
Namespace Prefix:	ffkt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the total outstanding balance related to a credit that was modified as troubled debt restructuring as a percentage of total restructured loans.

+ References

No definition available.

+ Details

Name:	ffkt_PercentOfTotalRestructuredLoans
Namespace Prefix:	ffkt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of allowance for credit losses related to receivables which had been measured under a general allowance for credit losses methodology that are now identified as troubled debt restructurings.

+ References

No definition available.

+ Details

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

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

+ Details

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

- Definition

Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18794-111554

+ Details

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

- Details

Name:	us-gaap_FinancingReceivableTroubledDebtRestructuringAxis=ffkt_TDRFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: