Supplemental Information - Summary of Certain Statements of Operations Amounts (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2023 |
Mar. 31, 2022 |
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| Condensed Income Statements, Captions [Line Items] | ||
| Stock-based compensation expenses | $ 828 | $ 531 |
| Interest expense | (3) | (10) |
| Interest income | 3 | 1 |
| Common stock warrants - financing costs amortization | (21) | (8) |
| Total | (21) | (17) |
| Research and Development [Member] | ||
| Condensed Income Statements, Captions [Line Items] | ||
| Stock-based compensation expenses | 184 | 30 |
| Selling, General, and Administrative [Member] | ||
| Condensed Income Statements, Captions [Line Items] | ||
| Stock-based compensation expenses | $ 644 | $ 501 |
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- Definition Common warrants financing costs. 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. No definition available.
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The net amount of nonoperating interest income (expense). No definition available.
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- Definition Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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