Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash Flows from Operating Activities
Net income	$ 4,074us-gaap_NetIncomeLoss	$ 3,370us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,031us-gaap_DepreciationAndAmortization	1,022us-gaap_DepreciationAndAmortization
Provision for loan losses	(1,545)ffkt_ProvisionAdjustmentForLoanLosses	132ffkt_ProvisionAdjustmentForLoanLosses
Deferred income tax expense	26us-gaap_DeferredIncomeTaxExpenseBenefit	1us-gaap_DeferredIncomeTaxExpenseBenefit
Mortgage loans originated for sale	(6,474)	(7,049)
Proceeds from sale of mortgage loans	6,858	10,293
Gain on sale of mortgage loans, net	(165)us-gaap_GainLossOnSaleOfMortgageLoans	(97)us-gaap_GainLossOnSaleOfMortgageLoans
Gain on disposal of premises and equipment, net	0	(5)
Net (gain) loss on sale and write downs of other real estate	(74)	816
Net gain on sale of available for sale investment securities	(120)us-gaap_GainLossOnSaleOfSecuritiesNet	(9)us-gaap_GainLossOnSaleOfSecuritiesNet
Increase in cash surrender value of company-owned life insurance	(224)	(232)
Decrease in accrued interest receivable	264	38
Decrease in other assets	1,399	1,225
Decrease in accrued interest payable	(59)	(96)
(Decrease) increase in other liabilities	(608)	846
Net cash provided by operating activities	5,467	11,213
Cash Flows from Investing Activities
Proceeds from maturities and calls of available for sale investment securities	26,074	24,456
Proceeds from sale of available for sale investment securities	9,407	9,406
Purchase of investment securities:
Available for sale	(56,243)	(24,054)
Held to maturity	0	(3,065)
Proceeds from sale of restricted stock investments, net	0	148
Principal collected on loans originated for investment, net	4,428	11,623
Purchase of premises and equipment	(433)	(667)
Proceeds from sale of other real estate	2,455	741
Proceeds from disposals of premises and equipment	0	5
Net cash (used in) provided by investing activities	(14,312)	18,593
Cash Flows from Financing Activities
Net increase (decrease) in deposits	29,215us-gaap_IncreaseDecreaseInDeposits	(983)us-gaap_IncreaseDecreaseInDeposits
Net decrease in federal funds purchased and other short-term borrowings	(2,207)	(1,730)
Proceeds from securities sold under agreements to repurchase and other long-term borrowings	2	3
Repayments of securities sold under agreements to repurchase and other long-term borrowings	(36)	(40)
Dividends paid, preferred stock	(225)	(375)
Shares issued under employee stock purchase plan	30	29
Net cash provided by (used in) financing activities	26,779	(3,096)
Net increase in cash and cash equivalents	17,934	26,710
Cash and cash equivalents at beginning of year	100,914	68,253
Cash and cash equivalents at end of period	118,848	94,963
Supplemental Disclosures
Cash paid during the period for interest	2,276us-gaap_InterestPaid	2,791us-gaap_InterestPaid
Transfers from loans to other real estate	175us-gaap_TransferToOtherRealEstate	335us-gaap_TransferToOtherRealEstate
Sale and financing of other real estate	85ffkt_SaleAndFinancingOfOtherRealEstate	1,160ffkt_SaleAndFinancingOfOtherRealEstate
Cash dividends payable, preferred	113	338
Available-for-sale Securities [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Net premuim amortization of investment securities	1,045	928
Held-to-maturity Securities [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Net premuim amortization of investment securities	13	3
Employee Stock Purchase Plan Expense [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Noncash compensation expense	8	9
Director Fee Compensation [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Noncash compensation expense	$ 18	$ 18

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The amount of cash paid for the origination of mortgages that are held for sale.

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The net cash outflow or inflow for the increase (decrease) in the beginning and end of period of loan and lease balances which are not originated or purchased specifically for resale. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both.

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Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity.

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The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.

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Amount of cash outflow through purchase of long-term held-to-maturity securities.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards other than stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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Amount of cash inflow from sale of Federal Home Loan Bank (FHLB) stock.

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The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

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The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

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