FAIR VALUE - Schedule of Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Farmland
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	$ 273	$ 313
Owner-occupied, nonfarm nonresidential properties
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	1,955	2,192
Commercial and Industrial
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	2,730	3,207
Other construction loans and all land development and other land loans
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	2,543	2,608
Multifamily (5 or more) residential properties
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	632	654
Non-owner occupied, nonfarm nonresidential
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	1,063	1,305
Home equity lines of credit
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	1,002	1,011
Residential Mortgages secured by first liens
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	2,423	2,387
Residential Mortgages secured by junior liens
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	391	437
Quoted Prices in Active Markets for Identical Assets (Level 1) | Farmland
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Owner-occupied, nonfarm nonresidential properties
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and Industrial
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other construction loans and all land development and other land loans
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Multifamily (5 or more) residential properties
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Non-owner occupied, nonfarm nonresidential
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Home equity lines of credit
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential Mortgages secured by first liens
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential Mortgages secured by junior liens
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Farmland
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Owner-occupied, nonfarm nonresidential properties
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Commercial and Industrial
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Other construction loans and all land development and other land loans
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Multifamily (5 or more) residential properties
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Non-owner occupied, nonfarm nonresidential
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Home equity lines of credit
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Residential Mortgages secured by first liens
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Other Observable Inputs (Level 2) | Residential Mortgages secured by junior liens
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	0	0
Significant Unobservable Inputs (Level 3) | Farmland
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	273	313
Significant Unobservable Inputs (Level 3) | Owner-occupied, nonfarm nonresidential properties
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	1,955	2,192
Significant Unobservable Inputs (Level 3) | Commercial and Industrial
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	2,730	3,207
Significant Unobservable Inputs (Level 3) | Other construction loans and all land development and other land loans
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	2,543	2,608
Significant Unobservable Inputs (Level 3) | Multifamily (5 or more) residential properties
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	632	654
Significant Unobservable Inputs (Level 3) | Non-owner occupied, nonfarm nonresidential
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	1,063	1,305
Significant Unobservable Inputs (Level 3) | Home equity lines of credit
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	1,002	1,011
Significant Unobservable Inputs (Level 3) | Residential Mortgages secured by first liens
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	2,423	2,387
Significant Unobservable Inputs (Level 3) | Residential Mortgages secured by junior liens
Impaired Loans [Abstract]
Residential mortgages secured by junior liens	$ 391	$ 437