DEBT - Future Minimum Principal Payments (Details) - USD ($) $ in Thousands |
Mar. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|---|
| Debt | |||
| Total debt | $ 13,426 | $ 13,679 | $ 12,839 |
| Convertible Debt | |||
| Debt | |||
| Principal due in 2024 | 3,056 | 3,390 | |
| Less: fair value ascribed to conversion feature and warrants | (859) | (1,523) | (1,523) |
| Plus: accretion and implied interest | 851 | 1,467 | 1,086 |
| Total debt | 3,048 | 3,334 | $ 2,953 |
| Debenture | |||
| Debt | |||
| Principal due in 2024 | 10,918 | 11,000 | |
| Less: fair value ascribed to conversion feature and warrants | (1,204) | (1,204) | |
| Plus: accretion and implied interest | 851 | 776 | |
| Less: debt issuance costs | (187) | (227) | |
| Total debt | $ 10,378 | $ 10,345 |
| X | ||||||||||
- Definition Amount of accretion of implied interest. No definition available.
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- Definition Amount of fair value ascribed to conversion feature and warrants. No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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