LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Nonaccrual Loans and Loans Receivable Past Due over 89 Days Still Accruing Interest by Class of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 28,751	$ 29,639
Nonaccrual With No Allowance for Credit Loss	20,991	21,008
Loans Receivable Past Due over 89 Days Still Accruing	49	55
Farmland
Financing Receivable, Past Due [Line Items]
Nonaccrual	734	1,083
Nonaccrual With No Allowance for Credit Loss	734	1,083
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Owner-occupied, nonfarm nonresidential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	2,058	2,673
Nonaccrual With No Allowance for Credit Loss	1,358	1,488
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual	7,186	7,512
Nonaccrual With No Allowance for Credit Loss	4,382	4,389
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Other construction loans and all land development and other land loans
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,606	1,653
Nonaccrual With No Allowance for Credit Loss	101	104
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Multifamily (5 or more) residential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	300	305
Nonaccrual With No Allowance for Credit Loss	300	305
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Non-owner occupied, nonfarm nonresidential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	9,068	9,076
Nonaccrual With No Allowance for Credit Loss	6,716	6,716
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,124	940
Nonaccrual With No Allowance for Credit Loss	1,124	940
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Residential Mortgages secured by first liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	5,551	5,316
Nonaccrual With No Allowance for Credit Loss	5,152	4,902
Loans Receivable Past Due over 89 Days Still Accruing	0	23
Residential Mortgages secured by junior liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	236	123
Nonaccrual With No Allowance for Credit Loss	236	123
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Other revolving credit plans
Financing Receivable, Past Due [Line Items]
Nonaccrual	127	81
Nonaccrual With No Allowance for Credit Loss	127	81
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Automobile
Financing Receivable, Past Due [Line Items]
Nonaccrual	73	79
Nonaccrual With No Allowance for Credit Loss	73	79
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Other consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual	688	798
Nonaccrual With No Allowance for Credit Loss	688	798
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Credit cards
Financing Receivable, Past Due [Line Items]
Nonaccrual	0	0
Nonaccrual With No Allowance for Credit Loss	0	0
Loans Receivable Past Due over 89 Days Still Accruing	$ 49	$ 32