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v3.23.2

Going Concern and Management's Plans (Additional Information) (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 05, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Apr. 28, 2023 | Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |
Net loss used in the calculation of basic and diluted loss per share |  | $ (9,579) | $ (10,772) | $ (9,247) | $ (9,864) | $ (20,351) | $ (19,111) |  |
Accumulated deficit |  | (223,216) |  |  |  | (223,216) |  |  | $ (202,865)
Cash and cash equivalents |  | 40,947 |  |  |  | 40,947 |  |  | $ 56,409
Cash and cash equivalents and short-term investments |  | $ 71,400 |  |  |  | $ 71,400 |  |  |
Common stock, shares issued |  | 23,043,933 |  |  |  | 23,043,933 |  |  | 13,776,788
Securities Purchase Agreement Initial Closing [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |
Common warrants issued | $ 35,000 |  |  |  |  |  |  |  |
Securities Purchase Agreement Initial Closing [Member] | Private Placement [Member] | Pre-funded Warrants [Member] |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares issued | 6,421,350 |  |  |  |  |  |  |  |
Securities Purchase Agreement Initial Closing [Member] | Accredited Investor [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |
Common warrants issued | $ 45,500 |  |  |  |  |  |  |  |
Common stock, shares issued | 8,730,168 |  |  |  |  |  |  | 15,151,518 |
Common stock warrants to purchase common stock shares | 15,151,518 |  |  |  |  |  |  | 15,151,518 |
Securities Purchase Agreement Second and Third Closing [Member] | Accredited Investor [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |
Common warrants issued | $ 105,000 |  |  |  |  |  |  |  |

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