Name:	lkfn_AdjustmentsInShareCapitalWarrantsIssue
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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Number of shares of common stock on warrants exercises.

No definition available.

Name:	lkfn_CommonStockIssuedOnWarrantsExercises
Namespace Prefix:	lkfn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the cost to exercise the warrants.

No definition available.

Name:	lkfn_CostToExerciseWarrant
Namespace Prefix:	lkfn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The number of shares to be purchased for the issue of warrants as on a particular date.

No definition available.

Name:	lkfn_IssueOfWarrantStockPurchase
Namespace Prefix:	lkfn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The aggregate amount of purchase price in cash for the purchase of required number of shares for warrants issue during the period

No definition available.

Name:	lkfn_IssueOfWarrantsAggregatePurchasePriceOfStock
Namespace Prefix:	lkfn_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

The number of shares issuable upon exercise of warrants.

No definition available.

Name:	lkfn_SharesIssuableUponExerciseOfWarrants
Namespace Prefix:	lkfn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

Name:	lkfn_SummaryOfWarrantsLineItems
Namespace Prefix:	lkfn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The per share amount of warrant at which it is exercisable.

No definition available.

Name:	lkfn_WarrantExercisePricePerShare
Namespace Prefix:	lkfn_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

The per share value of the warrant as per black scholes model issued during the period.

No definition available.

Name:	lkfn_WarrantFairValuePerShare
Namespace Prefix:	lkfn_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

The period up to which the warrant can be execrable from its date of issuance.

No definition available.

Name:	lkfn_WarrantPeriod
Namespace Prefix:	lkfn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_PreferredStockSharesIssued
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Data Type:	xbrli:sharesItemType
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Period Type:	instant

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

No definition available.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
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Period Type:	instant

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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Period Type:	duration

The risk-free interest rate assumption that is used in valuing an option on its own shares.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Price of a single share of a number of saleable stocks of a company.

No definition available.

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809