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CONVERTIBLE NOTES (Schedule of Fair Value Assumptions) (Details) - Level 3 | Dec. 31, 2021 $ / shares | Aug. 25, 2021
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2021 Notes | Share Price. |  |
Debt Instrument, Measurement Input |  | 1.34
2021 Notes | Expected term |  |
Debt Instrument, Measurement Input |  | 0.23
2021 Notes | Risk free rate |  |
Debt Instrument, Measurement Input |  | 0.05
2021 Notes | Volatility |  |
Debt Instrument, Measurement Input |  | 78.95
2021 Notes | Yield |  |
Debt Instrument, Measurement Input |  | 7.87
2024 Notes | Share Price. |  |
Debt Instrument, Measurement Input | 0.83 | 1.34
2024 Notes | Expected term |  |
Debt Instrument, Measurement Input | 2.67 | 3.03
2024 Notes | Risk free rate |  |
Debt Instrument, Measurement Input | 0.90 | 0.44
2024 Notes | Volatility |  |
Debt Instrument, Measurement Input | 92.79 | 91.35
2024 Notes | Yield |  |
Debt Instrument, Measurement Input | 10.31 | 7.66

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- Definition Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt. + 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=123874694&loc=d3e19207-110258 + Details
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