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STOCKHOLDERS' EQUITY (Convertible Promissory Note Warrants) (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Feb. 29, 2020 | Aug. 31, 2017
Class of Stock [Line Items] |  |  |  |  |  |  |
Deemed dividend |  | $ 0 | $ 0 | $ 0 | $ 3,344 |  |
Convertible Promissory Note Warrants |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Exercise price (in dollars per share) | $ 0.40 |  |  |  |  | $ 2.25 | $ 45.00
Maximum | Convertible Promissory Note Warrants | Deemed Dividend D |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Deemed dividend | $ 1 |  |  |  |  |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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- Details
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