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Note 19 - Fair Value Measurements (Details) - Impairment Charges on Assets Measured at Fair Value on a Nonrecurring Basis (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Note 19 - Fair Value Measurements (Details) - Impairment Charges on Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]    
Impairment charges $ 2,170us-gaap_AssetImpairmentCharges $ 5,476us-gaap_AssetImpairmentCharges
OREO [Member]    
Note 19 - Fair Value Measurements (Details) - Impairment Charges on Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]    
Impairment charges 1,595us-gaap_AssetImpairmentCharges
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ffkt_OREOMember		 4,689us-gaap_AssetImpairmentCharges
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ffkt_OREOMember
Impaired Loans [Member]    
Note 19 - Fair Value Measurements (Details) - Impairment Charges on Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]    
Impairment charges $ 575us-gaap_AssetImpairmentCharges
/ us-gaap_FairValueByAssetClassAxis
= ffkt_ImpairedLoansMember		 $ 787us-gaap_AssetImpairmentCharges
/ us-gaap_FairValueByAssetClassAxis
= ffkt_ImpairedLoansMember