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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Restructured in Troubled Debt (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) loan	Mar. 31, 2021 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	1	2
Pre-Modification Outstanding Recorded Investment	$ 1,784	$ 2,321
Post-Modification Outstanding Recorded Investment	$ 1,784	$ 2,321
Multifamily (5 or more) residential properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan		1
Pre-Modification Outstanding Recorded Investment		$ 717
Post-Modification Outstanding Recorded Investment		$ 717
Non-owner occupied, nonfarm nonresidential properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	1	1
Pre-Modification Outstanding Recorded Investment	$ 1,784	$ 1,604
Post-Modification Outstanding Recorded Investment	$ 1,784	$ 1,604

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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