LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	$ 45,832	$ 43,981	$ 45,832	$ 43,436
(Charge-offs)	(2,901)	(887)	(4,347)	(1,820)
Recoveries	97	98	199	345
Provision (Benefit) for Credit Losses on Loans Receivable	2,504	2,349	3,848	3,580
Ending Allowance	45,532	45,541	45,532	45,541
Farmland
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	135	129	138	159
(Charge-offs)	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit) for Credit Losses on Loans Receivable	19	11	16	(19)
Ending Allowance	154	140	154	140
Owner-occupied, nonfarm nonresidential properties
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	4,473	2,546	4,131	2,905
(Charge-offs)	(103)	0	(699)	(26)
Recoveries	8	7	17	15
Provision (Benefit) for Credit Losses on Loans Receivable	622	598	1,551	257
Ending Allowance	5,000	3,151	5,000	3,151
Agricultural production and other loans to farmers
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	8	3	7	6
(Charge-offs)	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit) for Credit Losses on Loans Receivable	0	2	1	(1)
Ending Allowance	8	5	8	5
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	8,973	8,943	9,500	9,766
(Charge-offs)	(1,693)	0	(1,764)	(46)
Recoveries	19	0	48	145
Provision (Benefit) for Credit Losses on Loans Receivable	(186)	(284)	(671)	(1,206)
Ending Allowance	7,113	8,659	7,113	8,659
Obligations (other than securities and leases) of states and political subdivisions
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	2,537	1,848	2,627	1,863
(Charge-offs)	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit) for Credit Losses on Loans Receivable	17	458	(73)	443
Ending Allowance	2,554	2,306	2,554	2,306
Other loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	378	594	389	456
(Charge-offs)	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit) for Credit Losses on Loans Receivable	25	139	14	277
Ending Allowance	403	733	403	733
Other construction loans and all land development and other land loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	4,255	3,394	2,830	3,253
(Charge-offs)	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit) for Credit Losses on Loans Receivable	(1,141)	197	284	338
Ending Allowance	3,114	3,591	3,114	3,591
Multifamily (5 or more) residential properties
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,067	2,535	1,251	2,353
(Charge-offs)	0	0	0	(65)
Recoveries	0	2	0	2
Provision (Benefit) for Credit Losses on Loans Receivable	343	(924)	159	(677)
Ending Allowance	1,410	1,613	1,410	1,613
Non-owner occupied, nonfarm nonresidential properties
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	8,785	8,259	9,783	7,653
(Charge-offs)	(349)	(248)	(349)	(248)
Recoveries	0	0	0	0
Provision (Benefit) for Credit Losses on Loans Receivable	1,282	966	284	1,572
Ending Allowance	9,718	8,977	9,718	8,977
1-4 Family Construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	303	398	191	327
(Charge-offs)	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit) for Credit Losses on Loans Receivable	(156)	10	(44)	81
Ending Allowance	147	408	147	408
Home equity lines of credit
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	897	1,158	844	1,173
(Charge-offs)	0	0	0	0
Recoveries	2	2	3	3
Provision (Benefit) for Credit Losses on Loans Receivable	136	(191)	188	(207)
Ending Allowance	1,035	969	1,035	969
Residential Mortgages secured by first liens
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	8,368	8,851	8,274	8,484
(Charge-offs)	0	0	(64)	(7)
Recoveries	0	3	0	3
Provision (Benefit) for Credit Losses on Loans Receivable	566	396	724	770
Ending Allowance	8,934	9,250	8,934	9,250
Residential Mortgages secured by junior liens
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,431	1,275	1,487	1,035
(Charge-offs)	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit) for Credit Losses on Loans Receivable	167	303	111	543
Ending Allowance	1,598	1,578	1,598	1,578
Other revolving credit plans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	854	830	977	722
(Charge-offs)	(84)	(36)	(99)	(58)
Recoveries	17	12	20	17
Provision (Benefit) for Credit Losses on Loans Receivable	147	125	36	250
Ending Allowance	934	931	934	931
Automobile
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	304	330	360	271
(Charge-offs)	(14)	(5)	(24)	(10)
Recoveries	1	0	4	0
Provision (Benefit) for Credit Losses on Loans Receivable	(4)	51	(53)	115
Ending Allowance	287	376	287	376
Other consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	2,711	2,561	2,656	2,665
(Charge-offs)	(526)	(442)	(1,043)	(982)
Recoveries	26	31	53	74
Provision (Benefit) for Credit Losses on Loans Receivable	591	411	1,136	804
Ending Allowance	2,802	2,561	2,802	2,561
Credit cards
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	98	73	95	67
(Charge-offs)	(11)	(18)	(40)	(80)
Recoveries	3	6	8	7
Provision (Benefit) for Credit Losses on Loans Receivable	13	11	40	78
Ending Allowance	103	72	103	72
Overdrafts
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	255	254	292	278
(Charge-offs)	(121)	(138)	(265)	(298)
Recoveries	21	35	46	79
Provision (Benefit) for Credit Losses on Loans Receivable	63	70	145	162
Ending Allowance	$ 218	$ 221	$ 218	$ 221