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v3.21.1

FAIR VALUE (Narratives) (Details) | 1 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2021 USD ($) | Mar. 31, 2021 USD ($) Y shares | Dec. 31, 2020 Y
2016 Warrant Liability [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants outstanding (in shares) | shares |  | 357 |
Settlement of warrant liability | $ | $ 100,000 |  |
Warrants and rights outstanding | $ |  | $ 0 |
Measurement Input, Price Volatility [Member] | 2016 Warrant Liability [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  | 135
Measurement Input, Risk Free Interest Rate [Member] | 2016 Warrant Liability [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  | 0.08
Minimum | Measurement Input, Price Volatility [Member] | Bridge Note Warrant Liabilities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 160 | 162
Minimum | Measurement Input, Risk Free Interest Rate [Member] | Bridge Note Warrant Liabilities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0.07 | 0.10
Minimum | Measurement Input, Expected Term [Member] | Bridge Note Warrant Liabilities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants and Rights Outstanding, Measurement Input | Y |  | 1.05 | 1.3
Maximum | Measurement Input, Price Volatility [Member] | Bridge Note Warrant Liabilities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 223 | 201
Maximum | Measurement Input, Risk Free Interest Rate [Member] | Bridge Note Warrant Liabilities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0.35 | 0.17
Maximum | Measurement Input, Expected Term [Member] | Bridge Note Warrant Liabilities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrants and Rights Outstanding, Measurement Input | Y |  | 3.12 | 3.4

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