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CONVERTIBLE NOTES FINANCINGS, Convertible Notes (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | ---
Jan. 11, 2024 | Dec. 31, 2023 | Mar. 31, 2024 | Mar. 31, 2023
Gross Convertible Notes [Roll Forward] |  |  |  |
Gross convertible notes at issuance | $ 1,405 |  | $ 1,405 | $ 0
Paid-in-kind interest added to principal |  |  | 177 | 0
Debt Discount and Debt Issuance Costs [Roll Forward] |  |  |  |
Payments of Debt Issuance Costs | (66) |  |  |
Amortization of debt discount and debt issuance costs |  |  | 445 | 0
Convertible Notes [Roll Forward] |  |  |  |
Beginning balance |  |  | 6,773 |
Ending balance |  | $ 6,773 | 8,014 |
Convertible Note Financing [Abstract] |  |  |  |
Interest expense |  |  | 407 | 0
Amortization of the debt discount and debt issuance costs |  |  | 445 | $ 0
Accrued expenses |  | 1,893 | 1,868 |
Convertible Notes [Member] |  |  |  |
Gross Convertible Notes [Roll Forward] |  |  |  |
Beginning balance |  |  | 16,616 |
Gross convertible notes at issuance | 650 |  |  |
Paid-in-kind interest added to principal |  |  | 177 |
Ending balance |  | 16,616 | 18,198 |
Debt Discount and Debt Issuance Costs [Roll Forward] |  |  |  |
Beginning balance |  |  | (9,843) |
Payments of Debt Issuance Costs | $ (31) |  |  |
Amortization of debt discount and debt issuance costs |  |  | 445 |
Ending balance |  | (9,843) | (10,184) |
Convertible Notes [Roll Forward] |  |  |  |
Beginning balance |  |  | 6,773 |
Ending balance |  | $ 6,773 | 8,014 |
Convertible Note Financing [Abstract] |  |  |  |
Interest expense |  |  | 800 |
Amortization of the debt discount and debt issuance costs |  |  | 445 |
Accrued expenses |  |  | 400 |
December 2023 Convertible Notes [Member] |  |  |  |
Gross Convertible Notes [Roll Forward] |  |  |  |
Gross convertible notes at issuance |  |  | 1,405 |
Debt Discount and Debt Issuance Costs [Roll Forward] |  |  |  |
Payments of Debt Issuance Costs |  |  | (786) |
Convertible Notes [Roll Forward] |  |  |  |
Net convertible notes at issuance |  |  | $ 619 |

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