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FAIR VALUE - Schedule of Quantitative Information About Nonrecurring Level 3 Fair Value Measurements (Details) - Cost to Sell - Other real estate owned - Appraisal value of collateral $ in Thousands | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
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Assets at fair value on a nonrecurring basis: | Significant Other Unobservable Inputs (Level 3) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Other real estate owned | $ 312 | $ 404
Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Other real estate owned, input (percent) | 0.10 | 0.10
Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Other real estate owned, input (percent) | 0.20 | 0.20
Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Other real estate owned, input (percent) | 0.16 | 0.16

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- Definition Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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