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Stockholders' Equity - Additional Information (Detail) - USD ($) |  |  | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 22, 2022 | Apr. 10, 2020 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value (in dollars per share) |  |  | $ 0.001 |  | $ 0.001 |  |  | $ 0.001 |  |
Common stock, shares authorized (in shares) |  |  | 150,000,000 |  | 150,000,000 |  |  | 150,000,000 |  |
Common stock, shares issued (in shares) |  |  | 37,175,665 |  | 37,175,665 |  |  | 32,682,342 |  |
Common stock, shares outstanding (in shares) |  |  | 37,175,665 |  | 37,175,665 |  |  | 32,682,342 |  |
Proceeds from common stock issued |  |  |  |  | $ 4,000 | $ 47,153,000 |  |  |  |
Warrant liabilities fair value adjustment |  |  | $ (8,214,000) | $ (9,682,000) | 13,459,000 | $ (19,712,000) |  |  |  |
Warrant liabilities |  |  | $ 32,100,000 |  | $ 32,100,000 |  |  | $ 18,600,000 |  |
Common Stock |  |  |  |  |  |  |  |  |  |
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding (in shares) |  |  | 37,175,665 | 32,596,403 | 37,175,665 | 32,596,403 | 33,327,627 | 32,682,342 | 29,221,158 | 28,705,334
Common stock issued, net of expenses (in shares) |  |  | 3,787,400 | 3,358,333 | 4,150,400 | 3,845,943 |  |  |  |
Cantor Fitzgerald & Co. and Ladenburg Thalmann & Co. Inc. | Sales Agreement |  |  |  |  |  |  |  |  |  |
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock issued, net of expenses (in shares) |  |  | 0 | 0 | 0 | 137,610 |  |  |  |
Proceeds from common stock issued |  |  |  | $ 0 |  | $ 700,000 |  |  |  |
Aspire Capital | Common Stock Purchase Agreement |  |  |  |  |  |  |  |  |  |
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock issued, net of expenses (in shares) |  |  |  | 0 |  | 375,000 |  |  |  |
Proceeds from common stock issued |  |  |  | $ 0 |  | $ 1,500,000 |  |  |  |
Maximum | Aspire Capital | Common Stock Purchase Agreement |  |  |  |  |  |  |  |  |  |
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Sale of common stock at sole discretion |  | $ 20,000,000.0 |  |  |  |  |  |  |  |
April 2022 Public Offering |  |  |  |  |  |  |  |  |  |
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock issued, net of expenses (in shares) | 3,333,333 |  |  |  |  |  |  |  |  |
Pre-funded warrants were exercised for proceeds |  |  | $ 3,787,000 |  | $ 4,150,000 |  |  |  |  |
Proceeds from common stock issued | $ 41,800,000 |  |  |  |  |  |  |  |  |
April 2022 Public Offering | Pre-funded Warrants |  |  |  |  |  |  |  |  |  |
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ 0.001 |  |  |  |  |  |  |  |  |
Common stock issued, net of expenses (in shares) |  |  | 3,787,400 |  | 4,150,400 |  |  |  |  |
Number of warrants issued to purchase common stock (in shares) | 11,666,667 |  | 7,516,267 | 11,666,667 | 7,516,267 | 11,666,667 |  |  |  |
Public offering price | $ 2.999 |  |  |  |  |  |  |  |  |
April 2022 Public Offering | Common Stock |  |  |  |  |  |  |  |  |  |
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Public offering price | $ 3.00 |  |  |  |  |  |  |  |  |
April 2022 Public Offering | Maximum | Warrant [Member] |  |  |  |  |  |  |  |  |  |
Schedule Of Capitalization Equity [Line Items] |  |  |  |  |  |  |  |  |  |
Number of warrants issued to purchase common stock (in shares) | 15,000,000 |  |  |  |  |  |  |  |  |

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