LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Credit Exposure in Company Loan Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	$ 77,882		$ 284,088
Credit Exposure 2024	277,966		211,089
Credit Exposure 2023	186,236		647,834
Credit Exposure 2022	620,768		360,460
Credit Exposure 2021	347,083		139,498
Credit Exposure Prior	480,870		360,070
Revolving Loans Amortized Cost	117,356		128,098
Total	2,108,161		2,131,137
Credit Exposure 2025.Charge - offs	(49)		(252)
Credit Exposure 2024.Charge - offs	(2)		(51)
Credit Exposure 2023.Charge - offs			(139)
Credit Exposure 2022.Charge - offs	(74)		(38)
Credit Exposure 2021.Charge - offs			(249)
Credit Exposure Prior.Charge - offs	(1)		(15)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs	(19)		(234)
Total	(145)	$ (310)	(978)
Credit Exposure 2025, Recoveries	11		52
Credit Exposure 2024, Recoveries			15
Credit Exposure 2023, Recoveries	1
Credit Exposure 2022, Recoveries	4		14
Credit Exposure 2021, Recoveries			220
Credit Exposure Prior, Recoveries	4		196
Credit Exposure Revolving Loans Amortized Cost, Recoveries			51
Total	20	200	548
Credit Exposure 2025,Current period net	(38)		(200)
Credit Exposure 2024,Current period net	(2)		(36)
Credit Exposure 2023,Current period net	1		(139)
Credit Exposure 2022,Current period net	(70)		(24)
Credit Exposure 2021,Current period net			(29)
Credit Exposure Prior,Current period net	3		181
Credit Exposure Revolving Loans Amortized Cost,Current period net	(19)		(183)
Total	(125)		(430)
Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	77,882		283,954
Credit Exposure 2024	277,828		208,801
Credit Exposure 2023	183,857		630,012
Credit Exposure 2022	607,499		350,906
Credit Exposure 2021	337,621		138,808
Credit Exposure Prior	473,045		354,720
Revolving Loans Amortized Cost	117,161		127,897
Total	2,074,893		2,095,098
Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			69
Credit Exposure 2024	48		1,691
Credit Exposure 2023	1,753		17,138
Credit Exposure 2022	12,016		9,434
Credit Exposure 2021	9,390
Credit Exposure Prior	2,578		1,547
Revolving Loans Amortized Cost	35		36
Total	25,820		29,915
Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			36
Credit Exposure 2024	34		137
Credit Exposure 2023	90		167
Credit Exposure 2022	638		86
Credit Exposure 2021	45		235
Credit Exposure Prior	1,875		1,724
Revolving Loans Amortized Cost	10		10
Total	2,692		2,395
Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			29
Credit Exposure 2024	56		460
Credit Exposure 2023	536		517
Credit Exposure 2022	615		34
Credit Exposure 2021	27		455
Credit Exposure Prior	3,372		2,079
Revolving Loans Amortized Cost	150		155
Total	4,756		3,729
Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	5,454		40,308
Credit Exposure 2024	33,268		28,496
Credit Exposure 2023	24,888		50,642
Credit Exposure 2022	47,644		28,940
Credit Exposure 2021	25,809		9,973
Credit Exposure Prior	25,557		16,191
Revolving Loans Amortized Cost	64,199		80,152
Total	226,819		254,702
Credit Exposure 2024.Charge - offs			(7)
Credit Exposure 2023.Charge - offs			(96)
Credit Exposure 2022.Charge - offs	(74)		(38)
Credit Exposure 2021.Charge - offs			(249)
Credit Exposure Prior.Charge - offs			(6)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs	(19)		(234)
Total	(93)	(216)	(630)
Credit Exposure 2024, Recoveries			15
Credit Exposure 2021, Recoveries			217
Credit Exposure Prior, Recoveries	1		176
Total	1	174	408
Credit Exposure 2024,Current period net			8
Credit Exposure 2023,Current period net			(96)
Credit Exposure 2022,Current period net	(74)		(38)
Credit Exposure 2021,Current period net			(32)
Credit Exposure Prior,Current period net	1		170
Credit Exposure Revolving Loans Amortized Cost,Current period net	(19)		(234)
Total	(92)		(222)
Commercial and industrial | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	5,454		40,229
Credit Exposure 2024	33,193		28,317
Credit Exposure 2023	24,750		50,065
Credit Exposure 2022	46,832		28,856
Credit Exposure 2021	25,734		9,837
Credit Exposure Prior	24,955		15,639
Revolving Loans Amortized Cost	64,154		80,106
Total	225,072		253,049
Commercial and industrial | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			26
Credit Exposure 2024	25
Credit Exposure 2022			57
Credit Exposure 2021	48
Credit Exposure Prior	374		453
Revolving Loans Amortized Cost	35		36
Total	482		572
Commercial and industrial | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			36
Credit Exposure 2024	34		137
Credit Exposure 2023	90		167
Credit Exposure 2022	638
Credit Exposure 2021			136
Credit Exposure Prior	209		59
Revolving Loans Amortized Cost	10		10
Total	981		545
Commercial and industrial | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			17
Credit Exposure 2024	16		42
Credit Exposure 2023	48		410
Credit Exposure 2022	174		27
Credit Exposure 2021	27
Credit Exposure Prior	19		40
Total	284		536
Construction and development
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	5,281		80,512
Credit Exposure 2024	86,452		34,301
Credit Exposure 2023	24,368		44,108
Credit Exposure 2022	43,323		35,409
Credit Exposure 2021	34,459		6,222
Credit Exposure Prior	30,055		16,857
Revolving Loans Amortized Cost	1,113		1,208
Total	225,051		218,617
Total	0	0	0
Total	0	0	0
Construction and development | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	5,281		80,512
Credit Exposure 2024	86,452		34,301
Credit Exposure 2023	24,368		40,399
Credit Exposure 2022	39,633		35,409
Credit Exposure 2021	34,459		6,222
Credit Exposure Prior	30,055		16,857
Revolving Loans Amortized Cost	1,113		1,208
Total	221,361		214,908
Construction and development | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023			3,709
Credit Exposure 2022	3,690
Total	3,690		3,709
Commercial real estate
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	32,619		58,453
Credit Exposure 2024	59,717		48,300
Credit Exposure 2023	46,881		341,517
Credit Exposure 2022	328,188		129,591
Credit Exposure 2021	125,905		76,893
Credit Exposure Prior	258,285		200,009
Revolving Loans Amortized Cost	15,296		11,921
Total	866,891		866,684
Total	0	0	0
Total	0	0	0
Commercial real estate | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	32,619		58,453
Credit Exposure 2024	59,717		48,300
Credit Exposure 2023	46,881		328,088
Credit Exposure 2022	320,063		120,214
Credit Exposure 2021	116,591		76,684
Credit Exposure Prior	255,969		198,433
Revolving Loans Amortized Cost	15,296		11,921
Total	847,136		842,093
Commercial real estate | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023			13,429
Credit Exposure 2022	8,125		9,377
Credit Exposure 2021	9,314
Credit Exposure Prior	561
Total	18,000		22,806
Commercial real estate | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior	1,536		1,558
Total	1,536		1,558
Commercial real estate | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021			209
Credit Exposure Prior	219		18
Total	219		227
Farmland
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	3,996		12,779
Credit Exposure 2024	11,108		23,138
Credit Exposure 2023	16,260		39,694
Credit Exposure 2022	38,800		42,194
Credit Exposure 2021	39,772		7,456
Credit Exposure Prior	23,185		17,190
Revolving Loans Amortized Cost	6,334		4,740
Total	139,455		147,191
Total	0	0	0
Total	0	0	0
Farmland | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	3,996		12,779
Credit Exposure 2024	11,108		21,451
Credit Exposure 2023	14,573		39,694
Credit Exposure 2022	38,800		42,108
Credit Exposure 2021	39,727		7,357
Credit Exposure Prior	21,030		16,747
Revolving Loans Amortized Cost	6,334		4,740
Total	135,568		144,876
Farmland | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024			1,687
Credit Exposure 2023	1,687
Credit Exposure Prior	1,617
Total	3,304		1,687
Farmland | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022			86
Credit Exposure 2021	45		99
Credit Exposure Prior	119		22
Total	164		207
Farmland | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior	419		421
Total	419		421
1-4 family residential
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	20,892		66,837
Credit Exposure 2024	66,834		61,587
Credit Exposure 2023	60,637		133,197
Credit Exposure 2022	125,845		106,297
Credit Exposure 2021	103,782		36,053
Credit Exposure Prior	136,090		104,323
Revolving Loans Amortized Cost	20,911		20,712
Total	534,991		529,006
Total	0	0	0
Total	0	0	0
1-4 family residential | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	20,892		66,808
Credit Exposure 2024	66,807		61,249
Credit Exposure 2023	60,296		133,197
Credit Exposure 2022	125,320		106,297
Credit Exposure 2021	103,758		35,825
Credit Exposure Prior	133,405		101,662
Revolving Loans Amortized Cost	20,761		20,557
Total	531,239		525,595
1-4 family residential | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			29
Credit Exposure 2022	201
Credit Exposure 2021	24
Credit Exposure Prior	18		1,094
Total	243		1,123
1-4 family residential | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2024	27		338
Credit Exposure 2023	341
Credit Exposure 2022	324
Credit Exposure 2021			228
Credit Exposure Prior	2,667		1,567
Revolving Loans Amortized Cost	150		155
Total	3,509		2,288
Multi-family residential
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			1,010
Credit Exposure 2024	1,004		1,759
Credit Exposure 2023	1,749		30,389
Credit Exposure 2022	30,255		14,340
Credit Exposure 2021	14,226		1,324
Credit Exposure Prior	3,948		2,665
Revolving Loans Amortized Cost	67		51
Total	51,249		51,538
Total	0	0	0
Total	0	0	0
Multi-family residential | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			1,010
Credit Exposure 2024	1,004		1,759
Credit Exposure 2023	1,749		30,389
Credit Exposure 2022	30,255		14,340
Credit Exposure 2021	14,226		1,324
Credit Exposure Prior	3,948		2,665
Revolving Loans Amortized Cost	67		51
Total	51,249		51,538
Consumer and Overdrafts
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	8,340		21,545
Credit Exposure 2024	17,247		12,515
Credit Exposure 2023	10,552		7,041
Credit Exposure 2022	5,611		3,016
Credit Exposure 2021	2,495		1,210
Credit Exposure Prior	2,858		2,136
Revolving Loans Amortized Cost	3,968		4,210
Total	51,071		51,673
Credit Exposure 2025.Charge - offs	(49)		(252)
Credit Exposure 2024.Charge - offs	(2)		(44)
Credit Exposure 2023.Charge - offs			(43)
Credit Exposure Prior.Charge - offs	(1)		(9)
Total	(52)		(348)
Credit Exposure 2025, Recoveries	11		52
Credit Exposure 2023, Recoveries	1
Credit Exposure 2022, Recoveries	4		14
Credit Exposure 2021, Recoveries			3
Credit Exposure Prior, Recoveries	3		17
Credit Exposure Revolving Loans Amortized Cost, Recoveries			51
Total	19		137
Credit Exposure 2025,Current period net	(38)		(200)
Credit Exposure 2024,Current period net	(2)		(44)
Credit Exposure 2023,Current period net	1		(43)
Credit Exposure 2022,Current period net	4		14
Credit Exposure 2021,Current period net			3
Credit Exposure Prior,Current period net	2		8
Credit Exposure Revolving Loans Amortized Cost,Current period net			51
Total	(33)		(211)
Consumer and Overdrafts | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	8,340		21,519
Credit Exposure 2024	17,211		12,431
Credit Exposure 2023	10,339		6,955
Credit Exposure 2022	5,515		3,009
Credit Exposure 2021	2,491		1,192
Credit Exposure Prior	2,819		2,120
Revolving Loans Amortized Cost	3,968		4,210
Total	50,683		51,436
Consumer and Overdrafts | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			14
Credit Exposure 2024	23		4
Credit Exposure 2023	66
Credit Exposure 2021	4
Credit Exposure Prior	8
Total	101		18
Consumer and Overdrafts | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025			12
Credit Exposure 2024	13		80
Credit Exposure 2023	147		86
Credit Exposure 2022	96		7
Credit Exposure 2021			18
Credit Exposure Prior	31		16
Total	287		219
Agricultural
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	1,300		2,644
Credit Exposure 2024	2,336		993
Credit Exposure 2023	901		1,246
Credit Exposure 2022	1,102		673
Credit Exposure 2021	635		367
Credit Exposure Prior	892		699
Revolving Loans Amortized Cost	5,468		5,104
Total	12,634		11,726
Total	0	0	0
Credit Exposure Prior, Recoveries			3
Total	0	$ 2	3
Credit Exposure Prior,Current period net			3
Total			3
Agricultural | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2025	1,300		2,644
Credit Exposure 2024	2,336		993
Credit Exposure 2023	901		1,225
Credit Exposure 2022	1,081		673
Credit Exposure 2021	635		367
Credit Exposure Prior	864		597
Revolving Loans Amortized Cost	5,468		5,104
Total	12,585		11,603
Agricultural | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior	11		85
Total	11		85
Agricultural | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023			21
Credit Exposure 2022	21
Credit Exposure Prior	17		17
Total	$ 38		$ 38