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, 2022	Dec. 31, 2021
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	$ 759,870	$ 763,835
Credit Exposure 2021	590,970	296,556
Credit Exposure 2020	218,486	181,846
Credit Exposure 2019	133,648	133,356
Credit Exposure 2018	105,917	107,292
Credit Exposure Prior	314,860	294,966
Revolving Loans Amortized Cost	142,314	130,189
Total	2,266,065	1,908,040
Credit Exposure 2022.Charge - offs	(241)	(285)
Credit Exposure 2021.Charge - offs	(20)	(36)
Credit Exposure 2020.Charge - offs	(89)	(242)
Credit Exposure 2019.Charge - offs	(20)	(155)
Credit Exposure 2018.Charge - offs		(589)
Credit Exposure Prior.Charge - offs	(1)	(273)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs	(375)	(61)
Total	(746)	(1,641)
Credit Exposure 2022, Recoveries	66	61
Credit Exposure 2021, Recoveries	2	3
Credit Exposure 2020, Recoveries	6	19
Credit Exposure 2019, Recoveries	11	8
Credit Exposure 2018, Recoveries	2	13
Credit Exposure Prior, Recoveries	82	30
Credit Exposure Revolving Loans Amortized Cost, Recoveries	29	21
Total	198	155
Credit Exposure 2022,Current period net	(175)	(224)
Credit Exposure 2021,Current period net	(18)	(33)
Credit Exposure 2020,Current period net	(83)	(223)
Credit Exposure 2019,Current period net	9	(147)
Credit Exposure 2018,Current period net	2	(576)
Credit Exposure Prior,Current period net	81	(243)
Credit Exposure Revolving Loans Amortized Cost,Current period net	(346)	(40)
Total	(548)	(1,486)
Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	759,852	763,519
Credit Exposure 2021	590,552	288,107
Credit Exposure 2020	216,991	181,039
Credit Exposure 2019	132,349	122,765
Credit Exposure 2018	101,916	88,616
Credit Exposure Prior	294,600	279,890
Revolving Loans Amortized Cost	141,292	130,109
Total	2,237,552	1,854,045
Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	5	76
Credit Exposure 2021	137	853
Credit Exposure 2020	959	5
Credit Exposure 2019	510
Credit Exposure 2018	2,605	5,521
Credit Exposure Prior	5,230	832
Revolving Loans Amortized Cost	950
Total	10,396	7,287
Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021		7,273
Credit Exposure 2020	266	668
Credit Exposure 2019	681	10,250
Credit Exposure 2018	1,224	13,060
Credit Exposure Prior	6,616	12,626
Total	8,787	43,877
Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	13	240
Credit Exposure 2021	281	323
Credit Exposure 2020	270	134
Credit Exposure 2019	108	341
Credit Exposure 2018	172	95
Credit Exposure Prior	8,414	1,618
Revolving Loans Amortized Cost	72	80
Total	9,330	2,831
Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	79,481	176,986
Credit Exposure 2021	71,654	31,798
Credit Exposure 2020	22,094	16,262
Credit Exposure 2019	13,491	6,663
Credit Exposure 2018	4,688	3,547
Credit Exposure Prior	13,503	14,669
Revolving Loans Amortized Cost	84,118	74,364
Total	289,029	324,289
Credit Exposure 2020.Charge - offs	(67)	(168)
Credit Exposure 2019.Charge - offs		(67)
Credit Exposure 2018.Charge - offs		(115)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs	(125)	(61)
Total	(192)	(411)
Credit Exposure Prior, Recoveries	33
Credit Exposure Revolving Loans Amortized Cost, Recoveries	29	21
Total	62	21
Credit Exposure 2020,Current period net	(67)	(168)
Credit Exposure 2019,Current period net		(67)
Credit Exposure 2018,Current period net		(115)
Credit Exposure Prior,Current period net	33
Credit Exposure Revolving Loans Amortized Cost,Current period net	(96)	(40)
Total	(130)	(390)
Commercial and industrial | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	79,468	176,972
Credit Exposure 2021	71,470	31,337
Credit Exposure 2020	21,831	16,207
Credit Exposure 2019	12,466	6,449
Credit Exposure 2018	4,490	3,493
Credit Exposure Prior	13,440	14,657
Revolving Loans Amortized Cost	83,168	74,364
Total	286,333	323,479
Commercial and industrial | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021	137	88
Credit Exposure 2019	378
Credit Exposure 2018		14
Revolving Loans Amortized Cost	950
Total	1,465	102
Commercial and industrial | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021		272
Credit Exposure 2020	252	55
Credit Exposure 2019	647	192
Credit Exposure 2018	198	40
Credit Exposure Prior	63	1
Total	1,160	560
Commercial and industrial | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	13	14
Credit Exposure 2021	47	101
Credit Exposure 2020	11
Credit Exposure 2019		22
Credit Exposure Prior		11
Revolving Loans Amortized Cost	0
Total	71	148
Construction and development
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	154,255	180,056
Credit Exposure 2021	171,294	68,765
Credit Exposure 2020	30,063	21,108
Credit Exposure 2019	8,852	6,509
Credit Exposure 2018	4,986	9,179
Credit Exposure Prior	12,834	13,565
Revolving Loans Amortized Cost	9,280	8,615
Total	391,564	307,797
Credit Exposure Prior, Recoveries		1
Total		1
Credit Exposure Prior,Current period net		1
Total		1
Construction and development | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	286,359	180,056
Credit Exposure 2021	132,069	68,765
Credit Exposure 2020	93,375	20,499
Credit Exposure 2019	64,690	6,507
Credit Exposure 2018	53,721	8,235
Credit Exposure Prior	159,911	13,565
Revolving Loans Amortized Cost	10,094	8,615
Total	800,219	306,242
Construction and development | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021	0
Credit Exposure 2020	950
Credit Exposure 2018	0	944
Credit Exposure Prior	911
Total	1,861	944
Construction and development | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2020	0	609
Credit Exposure 2019	0	2
Credit Exposure 2018	0
Total	0	611
Commercial real estate
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	286,359	134,617
Credit Exposure 2021	132,069	101,558
Credit Exposure 2020	93,629	80,857
Credit Exposure 2019	64,794	69,490
Credit Exposure 2018	57,368	61,020
Credit Exposure Prior	177,628	159,155
Revolving Loans Amortized Cost	10,094	16,145
Total	821,941	622,842
Credit Exposure 2020.Charge - offs		(17)
Credit Exposure 2019.Charge - offs		(56)
Credit Exposure 2018.Charge - offs		(472)
Credit Exposure Prior.Charge - offs		(271)
Total		(816)
Credit Exposure 2020, Recoveries		19
Credit Exposure 2018, Recoveries	1	11
Total	1	30
Credit Exposure 2020,Current period net		2
Credit Exposure 2019,Current period net		(56)
Credit Exposure 2018,Current period net	1	(461)
Credit Exposure Prior,Current period net		(271)
Total	1	(786)
Commercial real estate | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	154,255	134,617
Credit Exposure 2021	171,294	93,806
Credit Exposure 2020	29,113	80,733
Credit Exposure 2019	8,852	59,380
Credit Exposure 2018	4,986	43,457
Credit Exposure Prior	11,923	145,477
Revolving Loans Amortized Cost	9,280	16,065
Total	389,703	573,535
Commercial real estate | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	0
Credit Exposure 2021		765
Credit Exposure 2020	0
Credit Exposure 2019	0
Credit Exposure 2018	2,605	4,550
Credit Exposure Prior	4,281	788
Total	6,886	6,103
Commercial real estate | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021	0	6,987
Credit Exposure 2020	0	0
Credit Exposure 2019	0	10,041
Credit Exposure 2018	1,026	12,981
Credit Exposure Prior	6,456	12,553
Total	7,482	42,562
Commercial real estate | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021	0	0
Credit Exposure 2020	254	124
Credit Exposure 2019	104	69
Credit Exposure 2018	16	32
Credit Exposure Prior	6,980	337
Revolving Loans Amortized Cost		80
Total	7,354	642
Farmland
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	83,092	94,491
Credit Exposure 2021	54,255	12,063
Credit Exposure 2020	11,283	8,664
Credit Exposure 2019	6,968	7,456
Credit Exposure 2018	6,046	5,191
Credit Exposure Prior		11,346
Revolving Loans Amortized Cost	5,271	6,290
Total	179,402	145,501
Credit Exposure Prior,Current period net	12,487
Farmland | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	83,092	94,491
Credit Exposure 2021	54,255	11,868
Credit Exposure 2020	11,283	8,664
Credit Exposure 2019	6,936	7,456
Credit Exposure 2018	6,046	5,191
Credit Exposure Prior	12,305	11,145
Revolving Loans Amortized Cost	5,271	6,290
Total	179,188	145,105
Farmland | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior		26
Total		26
Farmland | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2019	32
Credit Exposure Prior	65	72
Total	97	72
Farmland | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021		195
Credit Exposure Prior	117	103
Total	117	298
1-4 family residential
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	113,548	132,618
Credit Exposure 2021	126,809	64,590
Credit Exposure 2020	51,155	43,016
Credit Exposure 2019	32,433	36,681
Credit Exposure 2018	28,127	27,045
Credit Exposure Prior	95,381	93,009
Revolving Loans Amortized Cost	20,530	13,714
Total	467,983	410,673
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 2022	113,548	132,448
Credit Exposure 2021	126,656	64,590
Credit Exposure 2020	51,155	43,016
Credit Exposure 2019	32,313	36,501
Credit Exposure 2018	28,004	26,987
Credit Exposure Prior	94,089	91,864
Revolving Loans Amortized Cost	20,530	13,714
Total	466,295	409,120
1-4 family residential | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2019	120
Credit Exposure 2018	0
Credit Exposure Prior	34	18
Total	154	18
1-4 family residential | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022		170
Credit Exposure 2021	153
Credit Exposure 2020	0
Credit Exposure 2019		180
Credit Exposure 2018	123	58
Credit Exposure Prior	1,258	1,127
Total	1,534	1,535
Multi-family residential
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	14,970	16,663
Credit Exposure 2021	18,452	4,286
Credit Exposure 2020	2,488	6,436
Credit Exposure 2019	4,249	908
Credit Exposure 2018	886	474
Credit Exposure Prior	1,889	2,113
Revolving Loans Amortized Cost	91	91
Total	43,025	30,971
Multi-family residential | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	14,970	16,663
Credit Exposure 2021	18,452	4,286
Credit Exposure 2020	2,488	6,436
Credit Exposure 2019	4,249	908
Credit Exposure 2018	886	474
Credit Exposure Prior	1,889	2,113
Revolving Loans Amortized Cost	91	91
Total	43,025	30,971
Multi-family residential | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure Prior, Recoveries	0
Total	0
Consumer and Overdrafts
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	25,385	24,847
Credit Exposure 2021	14,366	11,616
Credit Exposure 2020	6,664	4,572
Credit Exposure 2019	2,303	4,709
Credit Exposure 2018	3,377	563
Credit Exposure Prior	578	543
Revolving Loans Amortized Cost	6,531	4,478
Total	59,204	51,328
Credit Exposure 2022.Charge - offs	(241)	(285)
Credit Exposure 2021.Charge - offs	(20)	(36)
Credit Exposure 2020.Charge - offs	(22)	(57)
Credit Exposure 2019.Charge - offs	(20)	(32)
Credit Exposure 2018.Charge - offs		(2)
Credit Exposure Prior.Charge - offs	(1)	(2)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs	(250)
Total	(554)	(414)
Credit Exposure 2022, Recoveries	66	61
Credit Exposure 2021, Recoveries	2	3
Credit Exposure 2020, Recoveries	6
Credit Exposure 2019, Recoveries	11	8
Credit Exposure 2018, Recoveries	1	2
Credit Exposure Prior, Recoveries	19	21
Credit Exposure Revolving Loans Amortized Cost, Recoveries	0
Total	105	95
Credit Exposure 2022,Current period net	(175)	(224)
Credit Exposure 2021,Current period net	(18)	(33)
Credit Exposure 2020,Current period net	(16)	(57)
Credit Exposure 2019,Current period net	(9)	(24)
Credit Exposure 2018,Current period net	1
Credit Exposure Prior,Current period net	18	19
Credit Exposure Revolving Loans Amortized Cost,Current period net	(250)
Total	(449)	(319)
Consumer and Overdrafts | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	25,380	24,715
Credit Exposure 2021	14,285	11,589
Credit Exposure 2020	6,650	4,557
Credit Exposure 2019	2,287	4,647
Credit Exposure 2018	3,350	558
Credit Exposure Prior	572	543
Revolving Loans Amortized Cost	6,531	4,478
Total	59,055	51,087
Consumer and Overdrafts | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	5	76
Credit Exposure 2021	0
Credit Exposure 2020	9	5
Credit Exposure 2019	12
Credit Exposure Prior	0
Revolving Loans Amortized Cost	0
Total	26	81
Consumer and Overdrafts | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022		56
Credit Exposure 2021	81	27
Credit Exposure 2020	5	10
Credit Exposure 2019	4	62
Credit Exposure 2018	27	5
Credit Exposure Prior	6
Revolving Loans Amortized Cost	0
Total	123	160
Agricultural
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	2,780	3,557
Credit Exposure 2021	2,071	1,880
Credit Exposure 2020	1,110	931
Credit Exposure 2019	558	940
Credit Exposure 2018	439	273
Credit Exposure Prior	560	566
Revolving Loans Amortized Cost	6,399	6,492
Total	13,917	14,639
Total		(8)
Credit Exposure Prior, Recoveries		8
Credit Exposure Prior,Current period net		8
Total		8
Agricultural | Pass
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2022	2,780	3,557
Credit Exposure 2021	2,071	1,866
Credit Exposure 2020	1,096	927
Credit Exposure 2019	556	917
Credit Exposure 2018	433	221
Credit Exposure Prior	471	526
Revolving Loans Amortized Cost	6,327	6,492
Total	13,734	14,506
Agricultural | Special Mention
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2018		13
Credit Exposure Prior	4
Total	4	13
Agricultural | Substandard
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2021		14
Credit Exposure 2020	14	4
Credit Exposure 2019	2	15
Credit Exposure 2018	0	39
Credit Exposure Prior	32
Total	48	72
Agricultural | Nonaccrual
Financing Receivable Recorded Investment [Line Items]
Credit Exposure 2019	0	8
Credit Exposure 2018	6
Credit Exposure Prior	53	40
Revolving Loans Amortized Cost	72
Total	$ 131	$ 48