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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Troubled Debt Restructuring (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
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Mar. 31, 2022 Contract | Dec. 31, 2021 USD ($) Contract
Troubled Debt Restructurings: |  |
Number of Contracts | Contract | 0 | 1
Pre-Modification Outstanding Recorded Investment |  | $ 17
Post-Modification Outstanding Recorded Investment |  | $ 14
Commercial and industrial |  |
Troubled Debt Restructurings: |  |
Number of Contracts | Contract |  | 1
Pre-Modification Outstanding Recorded Investment |  | $ 17
Post-Modification Outstanding Recorded Investment |  | $ 14

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- Definition 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 + Details
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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 + Details
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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 + Details
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