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v3.23.3

Nature of Business, Basis of Presentation and Going Concern Uncertainty - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Apr. 26, 2022 | Dec. 22, 2021
Nature Of Business And Basis Of Presentation [LineItems] |  |  |  |  |  |  |  |  |  |  |
Accumulated deficit | $ (160,275,000) |  |  |  |  |  | $ (160,275,000) |  | $ (135,936,000) |  |
Net loss | (7,108,000) | $ (8,239,000) | $ (8,992,000) | $ (13,077,000) | $ (10,468,000) | $ (7,573,000) | (24,339,000) | $ (31,118,000) |  |  |
Cash and cash equivalents | 19,919,000 |  |  |  |  |  | 19,919,000 |  | 24,771,000 |  |
Working capital | 17,800,000 |  |  |  |  |  | 17,800,000 |  |  |  |
Net cash used in operating activities |  |  |  |  |  |  | 20,115,000 | $ 26,426,000 |  |  |
Convertible debt principal amount | 15,000,000 |  |  |  |  |  | $ 15,000,000 |  | $ 15,000,000 |  |
SVB [Member] | Contingent Convertible Debt Agreement [Member] |  |  |  |  |  |  |  |  |  |  |
Nature Of Business And Basis Of Presentation [LineItems] |  |  |  |  |  |  |  |  |  |  |
Convertible debt principal amount |  |  |  |  |  |  |  |  |  |  | $ 25,000,000
SVB [Member] | Contingent Convertible Debt Agreement [Member] | Non-Convertible Term Loans [Member] |  |  |  |  |  |  |  |  |  |  |
Nature Of Business And Basis Of Presentation [LineItems] |  |  |  |  |  |  |  |  |  |  |
Convertible debt principal amount |  |  |  |  |  |  |  |  |  | $ 10,000,000 |
Loan agreement expiration date |  |  |  |  |  |  | Apr. 30, 2023 |  |  |  |
Loan amount drawn | $ 0 |  |  |  |  |  | $ 0 |  |  |  |

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