LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Nonaccrual Loans and Loans Past Due over 89 Days Still Accruing Interest by Class of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 46,139	$ 39,845
Nonaccrual With No Allowance for Credit Loss	37,406	31,151
Loans Receivable Past Due over 89 Days Still Accruing	106	42
Farmland
Financing Receivable, Past Due [Line Items]
Nonaccrual	594	554
Nonaccrual With No Allowance for Credit Loss	594	554
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Owner-occupied, nonfarm nonresidential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	8,753	5,849
Nonaccrual With No Allowance for Credit Loss	8,057	5,153
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual	10,125	8,856
Nonaccrual With No Allowance for Credit Loss	8,602	8,335
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	4,036	4,011
Nonaccrual With No Allowance for Credit Loss	367	378
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Multifamily (5 or more) residential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	782	799
Nonaccrual With No Allowance for Credit Loss	137	155
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Non-owner occupied, nonfarm nonresidential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	4,987	2,883
Nonaccrual With No Allowance for Credit Loss	2,787	470
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Nonaccrual	2,018	2,004
Nonaccrual With No Allowance for Credit Loss	2,018	2,004
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Residential Mortgages secured by first liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	13,040	12,971
Nonaccrual With No Allowance for Credit Loss	13,040	12,685
Loans Receivable Past Due over 89 Days Still Accruing	1	0
Residential Mortgages secured by junior liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,024	1,088
Nonaccrual With No Allowance for Credit Loss	1,024	587
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Other revolving credit plans
Financing Receivable, Past Due [Line Items]
Nonaccrual	52	41
Nonaccrual With No Allowance for Credit Loss	52	41
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Automobile
Financing Receivable, Past Due [Line Items]
Nonaccrual	88	55
Nonaccrual With No Allowance for Credit Loss	88	55
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Other consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual	640	734
Nonaccrual With No Allowance for Credit Loss	640	734
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	$ 105	$ 42