XML 56 R45.htm IDEA: XBRL DOCUMENT
v3.19.2

ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Loans By Class Modified As Troubled Debt Restructuring) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) item | Jun. 30, 2019 USD ($) item | Jun. 30, 2018 USD ($) item
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment |  | $ 20 | $ 3,429
Post-Modification Outstanding Recorded Investment |  | $ 20 | $ 3,428
Modified Repayment Terms |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item | 1 | 1 | 6
Modified Repayment Terms | Minimum |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Extension period for modified repayment terms | 0 months | 0 months |
All Modifications |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item | 1 | 1 | 6
Non-working Capital Loans |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item |  | 1 |
Pre-Modification Outstanding Recorded Investment |  | $ 20 |
Post-Modification Outstanding Recorded Investment |  | $ 20 |
Commercial and Industrial Loans |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | $ 35 |  |
Post-Modification Outstanding Recorded Investment | $ 35 |  |
Commercial and Industrial Loans | Working Capital Lines of Credit Loans |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item |  |  | 1
Pre-Modification Outstanding Recorded Investment |  |  | $ 600
Post-Modification Outstanding Recorded Investment |  |  | $ 600
Commercial and Industrial Loans | Working Capital Lines of Credit Loans | Modified Repayment Terms |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item |  |  | 1
Extension period for modified repayment terms |  |  | 0 months
Commercial and Industrial Loans | Non-working Capital Loans |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Extension period for modified repayment terms |  |  | 0 months
Commercial and Industrial Loans | Non-working Capital Loans | Modified Repayment Terms |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item | 1 |  | 2
Commercial and Industrial Loans | Non-working Capital Loans | Modified Repayment Terms | Minimum |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Extension period for modified repayment terms | 0 months |  | 0 months
Commercial and Industrial Loans | Non-working Capital Loans | All Modifications |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item | 1 |  | 2
Pre-Modification Outstanding Recorded Investment |  |  | $ 1,420
Post-Modification Outstanding Recorded Investment |  |  | $ 1,420
Commercial and Industrial Loans | Owner Occupied Loans |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | $ 35 |  |
Post-Modification Outstanding Recorded Investment | $ 35 |  |
Commercial Real Estate and Multi-family Residential Loans | Construction and Land Development Loans |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item |  |  | 1
Pre-Modification Outstanding Recorded Investment |  |  | $ 824
Post-Modification Outstanding Recorded Investment |  |  | $ 824
Extension period for modified repayment terms |  |  | 12 months
Commercial Real Estate and Multi-family Residential Loans | Owner Occupied Loans | Modified Repayment Terms |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item |  |  | 1
Extension period for modified repayment terms |  |  | 12 months
Commercial Real Estate and Multi-family Residential Loans | Owner Occupied Loans | All Modifications |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item |  |  | 1
Pre-Modification Outstanding Recorded Investment |  |  | $ 387
Post-Modification Outstanding Recorded Investment |  |  | $ 387
Consumer 1-4 Family Mortgage Loans | Closed End First Mortgage Loans | Modified Repayment Terms |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item |  |  | 1
Consumer 1-4 Family Mortgage Loans | Closed End First Mortgage Loans | Modified Repayment Terms | Minimum |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Extension period for modified repayment terms |  | 0 months | 239 months
Consumer 1-4 Family Mortgage Loans | Closed End First Mortgage Loans | Modified Repayment Terms | Maximum |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Extension period for modified repayment terms |  | 239 months |
Consumer 1-4 Family Mortgage Loans | Closed End First Mortgage Loans | All Modifications |  |  |
Troubled Debt Restructurings Modified During Period [Abstract] |  |  |
Number of Loans | item |  |  | 1
Pre-Modification Outstanding Recorded Investment |  |  | $ 198
Post-Modification Outstanding Recorded Investment |  |  | $ 197
Extension period for modified repayment terms |  |  | 239 months

X
- Definition Represents the payment extension period granted to debtors that qualified for modified repayment terms. + References No definition available. + Details
Name: | lkfn_ExtensionPeriodForModifiedRepaymentTerms
Namespace Prefix: | lkfn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment in financing receivables (after modification) modified by troubled debt restructurings. + References No definition available. + Details
Name: | lkfn_FinancingReceivableModificationPostModificationRecordedInvestment
Namespace Prefix: | lkfn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of investment in financing receivables (before modification) modified by troubled debt restructurings. + References No definition available. + Details
Name: | lkfn_FinancingReceivableModificationPreModificationRecordedInvestment
Namespace Prefix: | lkfn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Indicates the number of loans under each classification. + References No definition available. + Details
Name: | lkfn_NumberOfLoans
Namespace Prefix: | lkfn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | lkfn_TroubledDebtRestructuringsModifiedDuringPeriodAbstract
Namespace Prefix: | lkfn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | lkfn_FinancingReceivableModificationsAxis=lkfn_ModifiedRepaymentTermsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | lkfn_FinancingReceivableModificationsAxis=lkfn_AllModificationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_NonWorkingCapitalLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=lkfn_TotalCommercialAndIndustrialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=lkfn_OwnerOccupiedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_FirstMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |