Note 10 - Postretirement Medical Benefits (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2013	Dec. 31, 2013
Employee Service Requirement	20 years
Employee Age Requirement	55 years
Other Postretirement Benefits Payments (in Dollars)	$ 61	$ 308
Plan 1 [Member]
Company Contributions Plan 1	100.00%
Plan 2 [Member]
Contributions Plan 2	50.00%

Percentage of employee contributions paid by the company related to postretirement benefits identified as Plan 1.

No definition available.

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- Definition

Percentage of contributions paid by the company and the employee related to postretirement benefits identified as Plan 2.

+ References

No definition available.

+ Details

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

- Definition

Minimum age requirement upon retirement to be eligible for postretirement medical benefits.

+ References

No definition available.

+ Details

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Namespace Prefix:	ffkt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Years of full time service required to be eligible for postretirement medical benefits.

+ References

No definition available.

+ Details

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Namespace Prefix:	ffkt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of cash or cash equivalents contributed during the reporting period by the entity to fund non-pension postretirement benefits.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3536-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration