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Supplemental Balance Sheet Information (Tables) | 6 Months Ended
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Jun. 30, 2023
Supplemental Balance Sheet Information [Abstract] |
Schedule of Prepaid and Other Current Assets | Prepaid expenses and other current assets
| June 30, 2023 |  | December 31, 2022
Prepaid clinical, contract research and manufacturing costs | $ | — |  |  | $ | 213 |
Prepaid insurance | 628 |  |  | 408 |
Other | 701 |  |  | 853 |
Prepaid expenses and other current assets | $ | 1,329 |  |  | $ | 1,474 |
Schedule of Other Noncurrent Assets | Other noncurrent assets
| June 30, 2023 (Restated) |  | December 31, 2022
Restricted cash | $ | 1,200 |  |  | $ | 1,200 |
Prepaid insurance | 1,999 |  |  | 2,252 |
Other | 3 |  |  | 38 |
Other noncurrent assets | $ | 3,202 |  |  | $ | 3,490 |
Schedule of Property and Equipment, Net | Property and equipment, net
| June 30, 2023 |  | December 31, 2022
Scientific equipment | $ | 5,265 |  |  | $ | 6,087 |
Computers and software | 63 |  |  | 63 |
Furniture and fixtures | 30 |  |  | 30 |
Property and equipment, gross | 5,358 |  |  | 6,180 |
Less: accumulated depreciation and amortization | (3,562) |  |  | (3,650) |
Property and equipment, net | $ | 1,796 |  |  | $ | 2,530 |
Schedule of Accrued Liabilities | Accrued expenses and other current liabilities
| June 30, 2023 |  | December 31, 2022
Accrued clinical, contract research and manufacturing costs | $ | — |  |  | $ | 48 |
Accrued restructuring costs | — |  |  | 48 |
Lease liability | 580 |  |  | 539 |
Accrued payroll-related expenses | 16 |  |  | 32 |
Accrued federal and state tax payable | — |  |  | 209 |
Accrued other expenses | 492 |  |  | 402 |
Accrued expenses and other current liabilities | $ | 1,088 |  |  | $ | 1,278 |

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- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References No definition available. + Details
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Supplemental Balance Sheet Information [Abstract] + References No definition available. + Details
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