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Promissory Note and Convertible Note Financings, Convertible Notes (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 15, 2023 | Jul. 14, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 08, 2023
Convertible Notes [Abstract] |  |  |  |  |
Gross convertible notes at issuance | $ 7,788 | $ 8,715 | $ 16,503 | $ 0 |
Debt discount and debt issuance costs |  |  | (10,146) |  |
Amortization of debt discount and debt issuance costs |  |  | 303 | 0 |
Paid-in-kind interest added to principal |  |  | 113 | 0 |
Convertible notes, net, at December 31, 2023 |  |  | 6,773 | 0 |
Promissory Note and Convertible Note Financing [Abstract] |  |  |  |  |
Interest expense |  |  | 176 | 0 |
Amortization of the debt discount and debt issuance costs |  |  | 303 | 0 |
Paid in-kind |  |  | 113 | 0 |
Interest in accrued expenses |  |  | 1,893 | $ 3,626 |
Convertible Notes [Member] |  |  |  |  |
Convertible Notes [Abstract] |  |  |  |  |
Amortization of debt discount and debt issuance costs |  |  | 300 |  |
Convertible notes, net, at December 31, 2023 |  |  |  |  | $ 1,500
Future Minimum Principal Payments under Convertible Notes [Abstract] |  |  |  |  |
2024 |  |  | 0 |  |
2025 |  |  | 0 |  |
2026 |  |  | 0 |  |
2027 |  |  | 0 |  |
2028 |  |  | 16,616 |  |
Total |  |  | 16,616 |  |
Promissory Note and Convertible Note Financing [Abstract] |  |  |  |  |
Interest expense |  |  | 600 |  |
Amortization of the debt discount and debt issuance costs |  |  | 300 |  |
Paid in-kind |  |  | 300 |  |
Remaining of interest expense |  |  | 100 |  |
Interest in accrued expenses |  |  | $ 200 |  |

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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