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SHARE BASED PAYMENTS - Schedule of share-based payment expense (Details) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020
Share Based Payments and Stock Options (Details) - Schedule of share-based payment expense [Line Items] |  |
Total | $ 3,241 | $ 5,302
Warrants |  |
Share Based Payments and Stock Options (Details) - Schedule of share-based payment expense [Line Items] |  |
Total | 747 | 0
Restricted stock |  |
Share Based Payments and Stock Options (Details) - Schedule of share-based payment expense [Line Items] |  |
Total | 1,935 | 3,316
Stock options |  |
Share Based Payments and Stock Options (Details) - Schedule of share-based payment expense [Line Items] |  |
Total | $ 559 | $ 1,986

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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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