LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Allowance for Credit Losses Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	$ 33,619	$ 16,202	$ 14,651
Impact of adopting ASC 326		4,548
Provision for credit losses	(1,700)	13,200	1,250
Loans charged-off	(1,641)	(543)	(453)
Recoveries	155	212	754
Ending balance	30,433	33,619	16,202
Commercial and industrial
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	4,033	2,056	1,751
Impact of adopting ASC 326		546
Provision for credit losses	(43)	1,398	(117)
Loans charged-off	(411)	(68)	(86)
Recoveries	21	101	508
Ending balance	3,600	4,033	2,056
Construction and development
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	4,735	2,378	1,920
Impact of adopting ASC 326		323
Provision for credit losses	(515)	2,034	458
Recoveries	1
Ending balance	4,221	4,735	2,378
Commercial real estate
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	15,780	6,853	6,025
Impact of adopting ASC 326		2,228
Provision for credit losses	(1,229)	6,698	827
Loans charged-off	(816)
Recoveries	30	1	1
Ending balance	13,765	15,780	6,853
Farmland
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	1,220	570	643
Impact of adopting ASC 326		26
Provision for credit losses	478	624	(73)
Ending balance	1,698	1,220	570
1-4 family residential
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	6,313	3,125	2,868
Impact of adopting ASC 326		1,339
Provision for credit losses	(495)	1,915	268
Loans charged-off		(68)	(14)
Recoveries		2	3
Ending balance	5,818	6,313	3,125
Multi-family residential
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	363	409	631
Impact of adopting ASC 326		(50)
Provision for credit losses	33	4	(222)
Ending balance	396	363	409
Consumer
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	929	602	565
Impact of adopting ASC 326		72
Provision for credit losses	(51)	373	(2)
Loans charged-off	(151)	(155)	(72)
Recoveries	35	37	111
Ending balance	762	929	602
Agricultural
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	239	197	238
Impact of adopting ASC 326		73
Provision for credit losses	(78)	(33)	(41)
Loans charged-off		(18)	(89)
Recoveries	8	20	89
Ending balance	169	239	197
Overdrafts
Allowance for credit losses:
Beginning balance, prior to adoption of ASC 326	7	12	10
Impact of adopting ASC 326		(9)
Provision for credit losses	200	187	152
Loans charged-off	(263)	(234)	(192)
Recoveries	60	51	42
Ending balance	$ 4	$ 7	$ 12