ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Narrative (Details)	3 Months Ended
Mar. 31, 2025 USD ($)
ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY
Loan amount of credit quality analysis	$ 250,000

It represents the information pertaining to allowance for loan losses and credit quality.

No definition available.

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