STOCK OWNERSHIP AND BENEFIT PLANS - Schedule of Total Unrecognized Stock-Based Compensation (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($)
Unvested RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock compensation	$ 3,805
Weighted-average recognition period (in years)	1 year 3 months 18 days
Unvested RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock compensation	$ 1,246
Weighted-average recognition period (in years)	1 year 4 months 24 days
Unvested PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock compensation	$ 1,545
Weighted-average recognition period (in years)	1 year 6 months

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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