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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Non-Accrual Loans Additional Information (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
90 days past due and still accruing | $ 728 | $ 0
Consumer | Single family residential mortgage |  |
Financing Receivable, Past Due [Line Items] |  |
Loans in process of foreclosure | $ 0 | $ 15,700

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- Definition Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL49126937-111524 + Details
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