LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Allowance for Credit Losses Activity (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Allowance for credit losses:
Beginning balance	$ 31,974	$ 30,433	$ 30,433
(Reversal of) provision for credit losses	0	(650)	2,150
Loans charged-off	(962)	(746)	(849)
Recoveries	128	198	240
Ending balance	31,140	29,235	31,974
Commercial and industrial
Allowance for credit losses:
Beginning balance	4,382	3,600	3,600
(Reversal of) provision for credit losses	(186)	347	902
Loans charged-off	(392)	(192)	(192)
Recoveries	19	62	72
Ending balance	3,823	3,817	4,382
Construction and development
Allowance for credit losses:
Beginning balance	4,889	4,221	4,221
(Reversal of) provision for credit losses	(1,257)	389	668
Loans charged-off		0	0
Recoveries	0	0	0
Ending balance	3,632	4,610	4,889
Commercial real estate
Allowance for credit losses:
Beginning balance	12,658	13,765	13,765
(Reversal of) provision for credit losses	701	(2,121)	(1,108)
Loans charged-off	(266)	0	0
Recoveries	0	1	1
Ending balance	13,093	11,645	12,658
Farmland
Allowance for credit losses:
Beginning balance	2,008	1,698	1,698
(Reversal of) provision for credit losses	111	141	310
Loans charged-off		0	0
Ending balance	2,119	1,839	2,008
1-4 family residential
Allowance for credit losses:
Beginning balance	6,617	5,818	5,818
(Reversal of) provision for credit losses	161	158	769
Loans charged-off		0	0
Recoveries	0	30	30
Ending balance	6,778	6,006	6,617
Multi-family residential
Allowance for credit losses:
Beginning balance	490	396	396
(Reversal of) provision for credit losses	(19)	50	94
Loans charged-off		0	0
Ending balance	471	446	490
Consumer
Allowance for credit losses:
Beginning balance	778	762	762
(Reversal of) provision for credit losses	309	229	283
Loans charged-off	(72)	(313)	(322)
Recoveries	65	40	55
Ending balance	1,080	718	778
Agricultural
Allowance for credit losses:
Beginning balance	149	169	169
(Reversal of) provision for credit losses	(7)	(19)	(20)
Loans charged-off	(3)	0	0
Recoveries	2	0	0
Ending balance	141	150	149
Overdrafts
Allowance for credit losses:
Beginning balance	3	4	4
(Reversal of) provision for credit losses	187	176	252
Loans charged-off	(229)	(241)	(335)
Recoveries	42	65	82
Ending balance	$ 3	$ 4	$ 3