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, 2023	Dec. 31, 2022
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	$ 85,211	$ 919,315
Credit Exposure 2022	907,269	557,540
Credit Exposure 2021	541,582	195,032
Credit Exposure 2020	187,799	128,777
Credit Exposure 2019	121,686	100,422
Credit Exposure Prior	378,421	301,434
Revolving Loans Amortized Cost	155,845	175,656
Total	2,377,813	2,378,176
Credit Exposure 2023.Charge - offs	(81)	(335)
Credit Exposure 2022.Charge - offs	(4)	(26)
Credit Exposure 2021.Charge - offs	(3)	(92)
Credit Exposure 2020.Charge - offs		(21)
Credit Exposure Prior.Charge - offs	(6)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs		(375)
Total	(94)	(849)
Credit Exposure 2023, Recoveries	18	83
Credit Exposure 2022, Recoveries		3
Credit Exposure 2021, Recoveries	1	6
Credit Exposure 2020, Recoveries		11
Credit Exposure 2019, Recoveries		2
Credit Exposure Prior, Recoveries	10	95
Credit Exposure Revolving Loans Amortized Cost, Recoveries	44	40
Total	73	240
Credit Exposure 2023,Current period net	(63)	(252)
Credit Exposure 2022,Current period net	(4)	(23)
Credit Exposure 2021,Current period net	(2)	(86)
Credit Exposure 2020,Current period net		(10)
Credit Exposure 2019,Current period net		2
Credit Exposure Prior,Current period net	4	95
Credit Exposure Revolving Loans Amortized Cost,Current period net	44	(335)
Total	(21)	(609)
Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	85,211	916,957
Credit Exposure 2022	904,017	557,131
Credit Exposure 2021	539,878	193,161
Credit Exposure 2020	185,723	127,738
Credit Exposure 2019	120,684	96,026
Credit Exposure Prior	358,038	285,125
Revolving Loans Amortized Cost	154,481	174,751
Total	2,348,032	2,350,889
Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		919
Credit Exposure 2022	903	135
Credit Exposure 2021	54	1,343
Credit Exposure 2020	1,291	361
Credit Exposure 2019	353	2,598
Credit Exposure Prior	6,093	3,586
Revolving Loans Amortized Cost	640	905
Total	9,334	9,847
Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		1,350
Credit Exposure 2022	1,630	0
Credit Exposure 2021		246
Credit Exposure 2020	502	454
Credit Exposure 2019	440	218
Credit Exposure Prior	4,470	4,324
Total	7,042	6,592
Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		89
Credit Exposure 2022	719	274
Credit Exposure 2021	1,650	282
Credit Exposure 2020	283	224
Credit Exposure 2019	209	1,580
Credit Exposure Prior	9,820	8,399
Revolving Loans Amortized Cost	724
Total	13,405	10,848
Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	20,706	99,836
Credit Exposure 2022	86,201	58,018
Credit Exposure 2021	53,515	19,833
Credit Exposure 2020	18,089	12,553
Credit Exposure 2019	11,588	4,364
Credit Exposure Prior	16,438	12,930
Revolving Loans Amortized Cost	89,399	106,533
Total	295,936	314,067
Credit Exposure 2021.Charge - offs		(67)
Credit Exposure Prior.Charge - offs	(3)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs		(125)
Total	(3)	(192)
Credit Exposure Prior, Recoveries	4	32
Credit Exposure Revolving Loans Amortized Cost, Recoveries	4	40
Total	8	72
Credit Exposure 2021,Current period net		(67)
Credit Exposure Prior,Current period net	1	32
Credit Exposure Revolving Loans Amortized Cost,Current period net	4	(85)
Total	5	(120)
Commercial and industrial | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	20,706	99,750
Credit Exposure 2022	86,053	57,854
Credit Exposure 2021	53,172	19,577
Credit Exposure 2020	17,774	11,797
Credit Exposure 2019	10,891	4,172
Credit Exposure Prior	16,203	12,907
Revolving Loans Amortized Cost	88,735	105,628
Total	293,534	311,685
Commercial and industrial | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022		131
Credit Exposure 2020		333
Credit Exposure 2019	287
Revolving Loans Amortized Cost	640	905
Total	927	1,369
Commercial and industrial | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		14
Credit Exposure 2022	13
Credit Exposure 2021		246
Credit Exposure 2020	240	423
Credit Exposure 2019	410	192
Credit Exposure Prior	204	23
Total	867	898
Commercial and industrial | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		72
Credit Exposure 2022	135	33
Credit Exposure 2021	343	10
Credit Exposure 2020	75
Credit Exposure Prior	31
Revolving Loans Amortized Cost	24
Total	608	115
Construction and development
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	12,877	180,406
Credit Exposure 2022	178,984	138,388
Credit Exposure 2021	128,674	17,361
Credit Exposure 2020	16,879	8,697
Credit Exposure 2019	8,031	4,878
Credit Exposure Prior	15,008	10,535
Revolving Loans Amortized Cost	11,750	16,870
Total	372,203	377,135
Construction and development | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	12,877	179,501
Credit Exposure 2022	177,829	138,388
Credit Exposure 2021	127,875	17,361
Credit Exposure 2020	16,879	8,697
Credit Exposure 2019	8,031	3,443
Credit Exposure Prior	13,573	10,535
Revolving Loans Amortized Cost	11,750	16,870
Total	368,814	374,795
Construction and development | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		905
Credit Exposure 2022	893
Total	893	905
Construction and development | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	262
Credit Exposure 2021	799
Credit Exposure 2019		1,435
Credit Exposure Prior	1,435
Total	2,496	1,435
Commercial real estate
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	19,634	348,498
Credit Exposure 2022	357,839	147,986
Credit Exposure 2021	148,170	88,448
Credit Exposure 2020	87,108	64,084
Credit Exposure 2019	59,977	53,622
Credit Exposure Prior	211,917	172,942
Revolving Loans Amortized Cost	15,545	12,007
Total	900,190	887,587
Credit Exposure 2019, Recoveries		1
Total		1
Credit Exposure 2019,Current period net		1
Total		1
Commercial real estate | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	19,634	347,162
Credit Exposure 2022	356,222	147,986
Credit Exposure 2021	148,170	86,897
Credit Exposure 2020	85,555	63,988
Credit Exposure 2019	59,890	51,002
Credit Exposure Prior	194,906	158,384
Revolving Loans Amortized Cost	15,545	12,007
Total	879,922	867,426
Commercial real estate | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021		1,300
Credit Exposure 2020	1,291
Credit Exposure 2019		2,594
Credit Exposure Prior	5,961	3,427
Total	7,252	7,321
Commercial real estate | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		1,336
Credit Exposure 2022	1,617
Credit Exposure 2020	262
Credit Exposure 2019		26
Credit Exposure Prior	4,181	4,207
Total	6,060	5,569
Commercial real estate | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021		251
Credit Exposure 2020		96
Credit Exposure 2019	87
Credit Exposure Prior	6,869	6,924
Total	6,956	7,271
Farmland
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	10,605	93,128
Credit Exposure 2022	91,287	51,912
Credit Exposure 2021	50,961	10,284
Credit Exposure 2020	9,384	6,677
Credit Exposure 2019	6,560	5,956
Credit Exposure Prior	17,363	11,912
Revolving Loans Amortized Cost	4,642	5,948
Total	190,802	185,817
Farmland | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	10,605	93,128
Credit Exposure 2022	91,287	51,912
Credit Exposure 2021	50,961	10,284
Credit Exposure 2020	9,384	6,646
Credit Exposure 2019	6,530	5,956
Credit Exposure Prior	17,194	11,741
Revolving Loans Amortized Cost	4,642	5,948
Total	190,603	185,615
Farmland | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2020		31
Credit Exposure 2019	30
Credit Exposure Prior	60	62
Total	90	93
Farmland | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior	109	109
Total	109	109
1-4 family residential
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	13,428	143,268
Credit Exposure 2022	144,409	129,105
Credit Exposure 2021	130,659	50,183
Credit Exposure 2020	48,354	30,184
Credit Exposure 2019	29,490	27,222
Credit Exposure Prior	112,123	91,143
Revolving Loans Amortized Cost	21,481	21,956
Total	499,944	493,061
Credit Exposure Prior, Recoveries		30
Total		30
Credit Exposure Prior,Current period net		30
Total		30
1-4 family residential | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	13,428	143,268
Credit Exposure 2022	144,109	128,957
Credit Exposure 2021	130,185	50,140
Credit Exposure 2020	48,171	30,068
Credit Exposure 2019	29,331	27,104
Credit Exposure Prior	110,684	89,678
Revolving Loans Amortized Cost	20,781	21,956
Total	496,689	491,171
1-4 family residential | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021	45	43
Credit Exposure 2019	47
Credit Exposure Prior	123	156
Total	215	199
1-4 family residential | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	300	148
Credit Exposure 2021	429
Credit Exposure 2020	183	116
Credit Exposure 2019	112	118
Credit Exposure Prior	1,316	1,309
Revolving Loans Amortized Cost	700
Total	3,040	1,691
Multi-family residential
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		18,183
Credit Exposure 2022	18,146	18,331
Credit Exposure 2021	18,225	2,463
Credit Exposure 2020	2,438	4,216
Credit Exposure 2019	4,182	878
Credit Exposure Prior	1,678	985
Revolving Loans Amortized Cost	91	91
Total	44,760	45,147
Multi-family residential | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		18,183
Credit Exposure 2022	18,146	18,331
Credit Exposure 2021	18,225	2,463
Credit Exposure 2020	2,438	4,216
Credit Exposure 2019	4,182	878
Credit Exposure Prior	1,678	985
Revolving Loans Amortized Cost	91	91
Total	44,760	45,147
Consumer and Overdrafts
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	7,309	32,848
Credit Exposure 2022	27,900	11,886
Credit Exposure 2021	9,895	5,476
Credit Exposure 2020	4,618	1,875
Credit Exposure 2019	1,399	3,106
Credit Exposure Prior	3,111	477
Revolving Loans Amortized Cost	6,201	6,008
Total	60,433	61,676
Credit Exposure 2023.Charge - offs	(81)	(335)
Credit Exposure 2022.Charge - offs	(4)	(26)
Credit Exposure 2021.Charge - offs	(3)	(25)
Credit Exposure 2020.Charge - offs		(21)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs		(250)
Total	(88)	(657)
Credit Exposure 2023, Recoveries	18	83
Credit Exposure 2022, Recoveries		3
Credit Exposure 2021, Recoveries	1	6
Credit Exposure 2020, Recoveries		11
Credit Exposure 2019, Recoveries		1
Credit Exposure Prior, Recoveries	4	33
Credit Exposure Revolving Loans Amortized Cost, Recoveries	40
Total	63	137
Credit Exposure 2023,Current period net	(63)	(252)
Credit Exposure 2022,Current period net	(4)	(23)
Credit Exposure 2021,Current period net	(2)	(19)
Credit Exposure 2020,Current period net		(10)
Credit Exposure 2019,Current period net		1
Credit Exposure Prior,Current period net	4	33
Credit Exposure Revolving Loans Amortized Cost,Current period net	40	(250)
Total	(25)	(520)
Consumer and Overdrafts | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	7,309	32,817
Credit Exposure 2022	27,868	11,789
Credit Exposure 2021	9,807	5,455
Credit Exposure 2020	4,593	1,835
Credit Exposure 2019	1,370	3,079
Credit Exposure Prior	3,084	473
Revolving Loans Amortized Cost	6,201	6,008
Total	60,232	61,456
Consumer and Overdrafts | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		14
Credit Exposure 2022	10	4
Credit Exposure 2021	9
Credit Exposure 2020		28
Credit Exposure 2019	19	4
Credit Exposure Prior	9
Total	47	50
Consumer and Overdrafts | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023		17
Credit Exposure 2022	22	93
Credit Exposure 2021	79	21
Credit Exposure 2020	25	12
Credit Exposure 2019	10	23
Credit Exposure Prior	18	4
Total	154	170
Agricultural
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	652	3,148
Credit Exposure 2022	2,503	1,914
Credit Exposure 2021	1,483	984
Credit Exposure 2020	929	491
Credit Exposure 2019	459	396
Credit Exposure Prior	783	510
Revolving Loans Amortized Cost	6,736	6,243
Total	13,545	13,686
Credit Exposure Prior.Charge - offs	(3)
Total	(3)
Credit Exposure Prior, Recoveries	2
Total	2
Credit Exposure Prior,Current period net	(1)
Total	(1)
Agricultural | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2023	652	3,148
Credit Exposure 2022	2,503	1,914
Credit Exposure 2021	1,483	984
Credit Exposure 2020	929	491
Credit Exposure 2019	459	392
Credit Exposure Prior	716	422
Revolving Loans Amortized Cost	6,736	6,243
Total	13,478	13,594
Agricultural | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior		3
Total		3
Agricultural | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior	25	32
Total	25	32
Agricultural | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2019		4
Credit Exposure Prior	42	53
Total	$ 42	$ 57