LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Amortized Cost Basis of Collateral-Dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	$ 17,246	$ 24,638
Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	7,672	4,295
Farmland | Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	430	736
Farmland | Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	0	0
Owner-occupied, nonfarm nonresidential properties | Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	5,376	6,890
Owner-occupied, nonfarm nonresidential properties | Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	4	4
Commercial and Industrial | Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	0	5,489
Commercial and Industrial | Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	7,668	4,291
Other construction loans and all land development and other land loans | Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	1,505	1,549
Other construction loans and all land development and other land loans | Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	0	0
Multifamily (5 or more) residential properties | Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	300	305
Multifamily (5 or more) residential properties | Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	0	0
Non-owner occupied, nonfarm nonresidential properties | Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	8,283	8,291
Non-owner occupied, nonfarm nonresidential properties | Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	0	0
Home equity lines of credit | Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	302	308
Home equity lines of credit | Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	0	0
Residential Mortgages secured by first liens | Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	1,050	1,070
Residential Mortgages secured by first liens | Non-Real Estate Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Amortized cost basis of collateral-dependent loans	$ 0	$ 0