LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Allowance for Credit Losses Activity (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Allowance for credit losses:
Beginning balance	$ 30,433	$ 33,619	$ 33,619
(Reversal of) provision for credit losses	(1,250)	0	(1,700)
Loans charged-off	(203)	(875)	(1,641)
Recoveries	116	26	155
Ending balance	29,096	32,770	30,433
Commercial and industrial
Allowance for credit losses:
Beginning balance	3,600	4,033	4,033
(Reversal of) provision for credit losses	230	(504)	(43)
Loans charged-off	(119)	(7)	(411)
Recoveries	39	7	21
Ending balance	3,750	3,529	3,600
Construction and development
Allowance for credit losses:
Beginning balance	4,221	4,735	4,735
(Reversal of) provision for credit losses	(323)	(538)	(515)
Loans charged-off		0	0
Recoveries	0	1	1
Ending balance	3,898	4,198	4,221
Commercial real estate
Allowance for credit losses:
Beginning balance	13,765	15,780	15,780
(Reversal of) provision for credit losses	(1,569)	1,087	(1,229)
Loans charged-off	0	(758)	(816)
Recoveries	1		30
Ending balance	12,197	16,109	13,765
Farmland
Allowance for credit losses:
Beginning balance	1,698	1,220	1,220
(Reversal of) provision for credit losses	302	(163)	478
Loans charged-off		0	0
Ending balance	2,000	1,057	1,698
1-4 family residential
Allowance for credit losses:
Beginning balance	5,818	6,313	6,313
(Reversal of) provision for credit losses	(119)	13	(495)
Loans charged-off		0	0
Recoveries	30	0	0
Ending balance	5,729	6,326	5,818
Multi-family residential
Allowance for credit losses:
Beginning balance	396	363	363
(Reversal of) provision for credit losses	60	133	33
Loans charged-off		0	0
Ending balance	456	496	396
Consumer
Allowance for credit losses:
Beginning balance	762	929	929
(Reversal of) provision for credit losses	146	(29)	(51)
Loans charged-off	(17)	(61)	(151)
Recoveries	16	4	35
Ending balance	907	843	762
Agricultural
Allowance for credit losses:
Beginning balance	169	239	239
(Reversal of) provision for credit losses	(13)	(31)	(78)
Loans charged-off		0	0
Recoveries		0	8
Ending balance	156	208	169
Overdrafts
Allowance for credit losses:
Beginning balance	4	7	7
(Reversal of) provision for credit losses	36	32	200
Loans charged-off	(67)	(49)	(263)
Recoveries	30	14	60
Ending balance	$ 3	$ 4	$ 4

Provision for loan losses and credit losses.

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- Definition

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(4)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.1)
-URI http://asc.fasb.org/extlink&oid=122038336&loc=d3e74567-122707

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-Publisher FASB
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-Topic 310
-SubTopic 10
-Section 50
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-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544

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-Publisher FASB
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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

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