LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Net Loans (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 4,431,398	$ 4,468,476
Percentage of Total	1.000	1.000
Less: allowance for credit losses	$ (45,832)	$ (45,832)	$ (43,981)	$ (43,436)
Net loans receivable	4,385,566	4,422,644
Net deferred loan origination fees included in the above table	1,984	2,448
Farmland
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 31,145	$ 31,869
Percentage of Total	0.007	0.007
Less: allowance for credit losses	$ (135)	$ (126)	(129)	(159)
Owner-occupied, nonfarm nonresidential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 511,219	$ 493,064
Percentage of Total	0.115	0.110
Less: allowance for credit losses	$ (4,473)	$ (3,949)	(2,546)	(2,905)
Agricultural production and other loans to farmers
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 1,759	$ 1,652
Percentage of Total	0	0
Less: allowance for credit losses	$ (8)	$ (7)	(3)	(6)
Commercial and Industrial
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 658,791	$ 726,442
Percentage of Total	0.149	0.163
Less: allowance for credit losses	$ (8,973)	$ (9,433)	(8,943)	(9,766)
Obligations (other than securities and leases) of states and political subdivisions
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 151,139	$ 152,201
Percentage of Total	0.034	0.034
Less: allowance for credit losses	$ (2,537)	$ (2,613)	(1,848)	(1,863)
Other loans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 25,129	$ 25,507
Percentage of Total	0.006	0.006
Less: allowance for credit losses	$ (378)	$ (387)	(594)	(456)
Other construction loans and all land development and other land loans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 532,730	$ 491,539
Percentage of Total	0.120	0.110
Less: allowance for credit losses	$ (4,255)	$ (4,033)	(3,394)	(3,253)
Multifamily (5 or more) residential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 248,123	$ 254,342
Percentage of Total	0.056	0.057
Less: allowance for credit losses	$ (1,067)	$ (1,030)	(2,535)	(2,353)
Non-owner occupied, nonfarm nonresidential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 887,336	$ 896,043
Percentage of Total	0.200	0.201
Less: allowance for credit losses	$ (8,785)	$ (9,170)	(8,259)	(7,653)
1-4 Family Construction
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 42,919	$ 51,207
Percentage of Total	0.010	0.011
Less: allowance for credit losses	$ (303)	$ (356)	(398)	(327)
Home equity lines of credit
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 133,290	$ 130,700
Percentage of Total	0.030	0.029
Less: allowance for credit losses	$ (897)	$ (831)	(1,158)	(1,173)
Residential Mortgages secured by first liens
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 989,544	$ 990,986
Percentage of Total	0.223	0.222
Less: allowance for credit losses	$ (8,368)	$ (8,050)	(8,851)	(8,484)
Residential Mortgages secured by junior liens
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 92,614	$ 91,063
Percentage of Total	0.021	0.020
Less: allowance for credit losses	$ (1,431)	$ (1,476)	(1,275)	(1,035)
Other revolving credit plans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 38,318	$ 42,877
Percentage of Total	0.009	0.010
Less: allowance for credit losses	$ (854)	$ (973)	(830)	(722)
Automobile
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 23,436	$ 25,315
Percentage of Total	0.005	0.006
Less: allowance for credit losses	$ (304)	$ (358)	(330)	(271)
Other consumer
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 50,968	$ 51,592
Percentage of Total	0.012	0.011
Less: allowance for credit losses	$ (2,711)	$ (2,653)	(2,561)	(2,665)
Credit cards
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 12,683	$ 11,785
Percentage of Total	0.003	0.003
Less: allowance for credit losses	$ (98)	$ (95)	(73)	(67)
Overdrafts
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 255	$ 292
Percentage of Total	0	0
Less: allowance for credit losses	$ (255)	$ (292)	$ (254)	$ (278)