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	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 18,954	$ 19,420
Nonaccrual With No Allowance for Credit Loss	11,828	10,593
Loans Receivable Past Due over 89 Days Still Accruing	1,060	168
Farmland
Financing Receivable, Past Due [Line Items]
Nonaccrual	938	965
Nonaccrual With No Allowance for Credit Loss	938	965
Loans Receivable Past Due over 89 Days Still Accruing	997	0
Owner-occupied, nonfarm nonresidential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,711	850
Nonaccrual With No Allowance for Credit Loss	1,632	762
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual	5,919	7,060
Nonaccrual With No Allowance for Credit Loss	2,070	1,653
Loans Receivable Past Due over 89 Days Still Accruing	55	8
Other construction loans and all land development and other land loans
Financing Receivable, Past Due [Line Items]
Nonaccrual	71	516
Nonaccrual With No Allowance for Credit Loss	71	77
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Multifamily (5 or more) residential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,108	1,270
Nonaccrual With No Allowance for Credit Loss	0	5
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Non-owner occupied, nonfarm nonresidential properties
Financing Receivable, Past Due [Line Items]
Nonaccrual	3,685	3,771
Nonaccrual With No Allowance for Credit Loss	2,058	2,143
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Nonaccrual	586	824
Nonaccrual With No Allowance for Credit Loss	586	824
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Residential Mortgages secured by first liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	4,021	3,410
Nonaccrual With No Allowance for Credit Loss	3,558	3,410
Loans Receivable Past Due over 89 Days Still Accruing	5	137
Residential Mortgages secured by junior liens
Financing Receivable, Past Due [Line Items]
Nonaccrual	200	147
Nonaccrual With No Allowance for Credit Loss	200	147
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Other revolving credit plans
Financing Receivable, Past Due [Line Items]
Nonaccrual	49	13
Nonaccrual With No Allowance for Credit Loss	49	13
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Automobile
Financing Receivable, Past Due [Line Items]
Nonaccrual	30	36
Nonaccrual With No Allowance for Credit Loss	30	36
Loans Receivable Past Due over 89 Days Still Accruing	0	0
Other consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual	636	558
Nonaccrual With No Allowance for Credit Loss	636	558
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	$ 3	$ 23