LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Credit Exposure in Company Loan Portfolio (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	$ 186,327		$ 288,326
Credit Exposure 2023	227,675		833,709
Credit Exposure 2022	702,593		451,802
Credit Exposure 2021	377,213		159,704
Credit Exposure 2020	143,980		108,230
Credit Exposure Prior	372,629		320,588
Revolving Loans Amortized Cost	126,120		160,217
Total	2,136,537		2,322,576
Credit Exposure 2024.Charge - offs	(172)		(615)
Credit Exposure 2023.Charge - offs	(49)		(38)
Credit Exposure 2022.Charge - offs	(45)		(76)
Credit Exposure 2021.Charge - offs			(52)
Credit Exposure 2020.Charge - offs	(216)		(36)
Credit Exposure Prior.Charge - offs	(9)		(94)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs	(206)		(293)
Total	(697)	$ (962)	(1,204)
Credit Exposure 2024, Recoveries	42		61
Credit Exposure 2023, Recoveries	17
Credit Exposure 2022, Recoveries			4
Credit Exposure 2021, Recoveries	14		1
Credit Exposure 2020, Recoveries	3
Credit Exposure Prior, Recoveries	194		29
Credit Exposure Revolving Loans Amortized Cost, Recoveries			55
Total	270	128	150
Credit Exposure 2024,Current period net	(130)		(554)
Credit Exposure 2023,Current period net	(32)		(38)
Credit Exposure 2022,Current period net	(45)		(72)
Credit Exposure 2021,Current period net	14		(51)
Credit Exposure 2020,Current period net	(213)		(36)
Credit Exposure Prior,Current period net	185		(65)
Credit Exposure Revolving Loans Amortized Cost,Current period net	(206)		(238)
Total	(427)		(1,054)
Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	186,195		288,301
Credit Exposure 2023	225,203		810,203
Credit Exposure 2022	673,482		441,607
Credit Exposure 2021	367,251		158,291
Credit Exposure 2020	143,624		107,314
Credit Exposure Prior	364,617		316,988
Revolving Loans Amortized Cost	125,853		159,933
Total	2,086,225		2,282,637
Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	4		6
Credit Exposure 2023	1,686		7,042
Credit Exposure 2022	17,217		137
Credit Exposure 2021	9,526		958
Credit Exposure 2020			147
Credit Exposure Prior	4,514		1,196
Revolving Loans Amortized Cost			250
Total	32,947		9,736
Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	37
Credit Exposure 2023	333		16,210
Credit Exposure 2022	11,185		6,950
Credit Exposure 2021	40		370
Credit Exposure 2020	241		446
Credit Exposure Prior	424		635
Revolving Loans Amortized Cost	10
Total	12,270		24,611
Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	91		19
Credit Exposure 2023	453		254
Credit Exposure 2022	709		3,108
Credit Exposure 2021	396		85
Credit Exposure 2020	115		323
Credit Exposure Prior	3,074		1,769
Revolving Loans Amortized Cost	257		34
Total	5,095		5,592
Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	25,019		42,646
Credit Exposure 2023	32,368		72,711
Credit Exposure 2022	55,513		39,988
Credit Exposure 2021	30,844		14,199
Credit Exposure 2020	10,908		8,766
Credit Exposure Prior	17,733		12,756
Revolving Loans Amortized Cost	73,353		96,499
Total	245,738		287,565
Credit Exposure 2024.Charge - offs			(79)
Credit Exposure 2023.Charge - offs	(7)
Credit Exposure 2022.Charge - offs	(7)		(25)
Credit Exposure 2021.Charge - offs			(41)
Credit Exposure 2020.Charge - offs	(216)		(31)
Credit Exposure Prior.Charge - offs			(4)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs	(206)		(293)
Total	(436)	(392)	(473)
Credit Exposure 2023, Recoveries	17
Credit Exposure Prior, Recoveries	175		4
Credit Exposure Revolving Loans Amortized Cost, Recoveries			15
Total	192	19	19
Credit Exposure 2024,Current period net			(79)
Credit Exposure 2023,Current period net	10
Credit Exposure 2022,Current period net	(7)		(25)
Credit Exposure 2021,Current period net			(41)
Credit Exposure 2020,Current period net	(216)		(31)
Credit Exposure Prior,Current period net	175
Credit Exposure Revolving Loans Amortized Cost,Current period net	(206)		(278)
Total	(244)		(454)
Commercial and industrial | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	24,964		42,646
Credit Exposure 2023	32,007		72,376
Credit Exposure 2022	55,164		38,328
Credit Exposure 2021	30,739		12,864
Credit Exposure 2020	10,735		8,249
Credit Exposure Prior	17,113		12,524
Revolving Loans Amortized Cost	73,246		96,215
Total	243,968		283,202
Commercial and industrial | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023			16
Credit Exposure 2022			132
Credit Exposure 2021	67		958
Credit Exposure 2020			147
Credit Exposure Prior	468
Revolving Loans Amortized Cost			250
Total	535		1,503
Commercial and industrial | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	37
Credit Exposure 2023	333		190
Credit Exposure 2022	228
Credit Exposure 2021			370
Credit Exposure 2020	141		370
Credit Exposure Prior	99		153
Revolving Loans Amortized Cost	10
Total	848		1,083
Commercial and industrial | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	18
Credit Exposure 2023	28		129
Credit Exposure 2022	121		1,528
Credit Exposure 2021	38		7
Credit Exposure 2020	32
Credit Exposure Prior	53		79
Revolving Loans Amortized Cost	97		34
Total	387		1,777
Construction and development
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	48,901		86,641
Credit Exposure 2023	47,698		112,609
Credit Exposure 2022	51,442		62,548
Credit Exposure 2021	40,141		7,074
Credit Exposure 2020	6,638		5,915
Credit Exposure Prior	17,315		12,615
Revolving Loans Amortized Cost	879		9,237
Total	213,014		296,639
Total		0	0
Total	0	0	0
Construction and development | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	48,828		86,641
Credit Exposure 2023	47,698		112,347
Credit Exposure 2022	47,709		62,548
Credit Exposure 2021	40,141		7,074
Credit Exposure 2020	6,638		5,915
Credit Exposure Prior	17,315		12,504
Revolving Loans Amortized Cost	879		9,237
Total	209,208		296,266
Construction and development | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	3,733
Total	3,733
Construction and development | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023			189
Credit Exposure Prior			67
Total			256
Construction and development | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	73
Credit Exposure 2023			73
Credit Exposure Prior			44
Total	73		117
Commercial real estate
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	31,573		46,655
Credit Exposure 2023	47,160		391,764
Credit Exposure 2022	358,075		156,486
Credit Exposure 2021	133,059		81,765
Credit Exposure 2020	76,560		54,181
Credit Exposure Prior	204,712		177,279
Revolving Loans Amortized Cost	14,973		15,065
Total	866,112		923,195
Credit Exposure 2024.Charge - offs			(190)
Credit Exposure Prior.Charge - offs			(87)
Total	0	(266)	(277)
Total	0	0	0
Credit Exposure 2024,Current period net			(190)
Credit Exposure Prior,Current period net			(87)
Total			(277)
Commercial real estate | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	31,573		46,655
Credit Exposure 2023	47,160		368,933
Credit Exposure 2022	333,312		149,536
Credit Exposure 2021	123,600		81,765
Credit Exposure 2020	76,560		54,100
Credit Exposure Prior	201,007		176,509
Revolving Loans Amortized Cost	14,973		15,065
Total	828,185		892,563
Commercial real estate | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023			7,000
Credit Exposure 2022	13,484
Credit Exposure 2021	9,459
Credit Exposure Prior	3,608		333
Total	26,551		7,333
Commercial real estate | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023			15,831
Credit Exposure 2022	10,957		6,950
Credit Exposure 2020			49
Credit Exposure Prior	28		337
Total	10,985		23,167
Commercial real estate | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	322
Credit Exposure 2020			32
Credit Exposure Prior	69		100
Total	391		132
Farmland
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	10,344		25,009
Credit Exposure 2023	21,363		77,371
Credit Exposure 2022	63,119		46,817
Credit Exposure 2021	43,182		8,556
Credit Exposure 2020	7,623		5,626
Credit Exposure Prior	18,244		16,067
Revolving Loans Amortized Cost	5,241		6,849
Total	169,116		186,295
Total		0	0
Farmland | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	10,344		25,009
Credit Exposure 2023	19,677		77,371
Credit Exposure 2022	63,119		46,817
Credit Exposure 2021	42,864		8,556
Credit Exposure 2020	7,523		5,599
Credit Exposure Prior	17,430		15,850
Revolving Loans Amortized Cost	5,241		6,849
Total	166,198		186,051
Farmland | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	1,686
Total	1,686
Farmland | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021	40
Credit Exposure 2020	100		27
Credit Exposure Prior	211		53
Total	351		80
Farmland | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021	278
Credit Exposure Prior	603		164
Total	881		164
1-4 family residential
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	49,250		57,348
Credit Exposure 2023	60,828		143,992
Credit Exposure 2022	132,265		122,213
Credit Exposure 2021	110,981		42,588
Credit Exposure 2020	39,084		28,939
Credit Exposure Prior	108,750		97,377
Revolving Loans Amortized Cost	23,087		22,146
Total	524,245		514,603
Total		0	0
Total	0	0	0
1-4 family residential | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	49,250		57,348
Credit Exposure 2023	60,487		143,992
Credit Exposure 2022	132,125		120,964
Credit Exposure 2021	110,915		42,535
Credit Exposure 2020	39,020		28,764
Credit Exposure Prior	106,074		95,198
Revolving Loans Amortized Cost	22,927		22,146
Total	520,798		510,947
1-4 family residential | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior	435		863
Total	435		863
1-4 family residential | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	341
Credit Exposure 2022	140		1,249
Credit Exposure 2021	66		53
Credit Exposure 2020	64		175
Credit Exposure Prior	2,241		1,316
Revolving Loans Amortized Cost	160
Total	3,012		2,793
Multi-family residential
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	1,016		1,984
Credit Exposure 2023	1,768		18,041
Credit Exposure 2022	32,438		16,496
Credit Exposure 2021	14,822		2,363
Credit Exposure 2020	1,341		3,862
Credit Exposure Prior	2,762		1,492
Revolving Loans Amortized Cost	11		54
Total	54,158		44,292
Total		0	0
Multi-family residential | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	1,016		1,984
Credit Exposure 2023	1,768		18,041
Credit Exposure 2022	32,438		16,496
Credit Exposure 2021	14,822		2,363
Credit Exposure 2020	1,341		3,862
Credit Exposure Prior	2,762		1,492
Revolving Loans Amortized Cost	11		54
Total	54,158		44,292
Consumer and Overdrafts
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	18,224		26,186
Credit Exposure 2023	15,330		15,259
Credit Exposure 2022	8,349		5,920
Credit Exposure 2021	3,479		2,474
Credit Exposure 2020	1,413		631
Credit Exposure Prior	2,265		2,344
Revolving Loans Amortized Cost	3,801		4,488
Total	52,861		57,302
Credit Exposure 2024.Charge - offs	(172)		(346)
Credit Exposure 2023.Charge - offs	(42)		(38)
Credit Exposure 2022.Charge - offs	(38)		(51)
Credit Exposure 2021.Charge - offs			(11)
Credit Exposure 2020.Charge - offs			(5)
Credit Exposure Prior.Charge - offs	(9)
Total	(261)		(451)
Credit Exposure 2024, Recoveries	42		61
Credit Exposure 2022, Recoveries			4
Credit Exposure 2021, Recoveries	14		1
Credit Exposure 2020, Recoveries	3
Credit Exposure Prior, Recoveries	16		23
Credit Exposure Revolving Loans Amortized Cost, Recoveries			40
Total	75		129
Credit Exposure 2024,Current period net	(130)		(285)
Credit Exposure 2023,Current period net	(42)		(38)
Credit Exposure 2022,Current period net	(38)		(47)
Credit Exposure 2021,Current period net	14		(10)
Credit Exposure 2020,Current period net	3		(5)
Credit Exposure Prior,Current period net	7		23
Credit Exposure Revolving Loans Amortized Cost,Current period net			40
Total	(186)		(322)
Consumer and Overdrafts | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	18,220		26,161
Credit Exposure 2023	15,246		15,181
Credit Exposure 2022	8,273		5,840
Credit Exposure 2021	3,465		2,449
Credit Exposure 2020	1,394		589
Credit Exposure Prior	2,245		2,307
Revolving Loans Amortized Cost	3,801		4,488
Total	52,644		57,015
Consumer and Overdrafts | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	4		6
Credit Exposure 2023			26
Credit Exposure 2022			5
Credit Exposure Prior	3
Total	7		37
Consumer and Overdrafts | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024			19
Credit Exposure 2023	84		52
Credit Exposure 2022	76		75
Credit Exposure 2021	14		25
Credit Exposure 2020	19		42
Credit Exposure Prior	17		37
Total	210		250
Agricultural
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	2,000		1,857
Credit Exposure 2023	1,160		1,962
Credit Exposure 2022	1,392		1,334
Credit Exposure 2021	705		685
Credit Exposure 2020	413		310
Credit Exposure Prior	848		658
Revolving Loans Amortized Cost	4,775		5,879
Total	11,293		12,685
Credit Exposure Prior.Charge - offs			(3)
Total	0	(3)	(3)
Credit Exposure Prior, Recoveries	3		2
Total	3	$ 2	2
Credit Exposure Prior,Current period net	3		(1)
Total	3		(1)
Agricultural | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	2,000		1,857
Credit Exposure 2023	1,160		1,962
Credit Exposure 2022	1,342		1,078
Credit Exposure 2021	705		685
Credit Exposure 2020	413		236
Credit Exposure Prior	671		604
Revolving Loans Amortized Cost	4,775		5,879
Total	11,066		12,301
Agricultural | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior	86		25
Total	86		25
Agricultural | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	50		256
Credit Exposure 2020			74
Credit Exposure Prior	91		29
Total	$ 141		$ 359