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Stock-Based Compensation Plans - Additional Information (Details) - USD ($) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 48 Months Ended |
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Jun. 04, 2025 | Mar. 04, 2024 | Jan. 08, 2024 | Jun. 28, 2023 | Aug. 01, 2021 | Apr. 25, 2021 | Jul. 31, 2019 | Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Options repriced (in shares) |  | 3,317,596 |  |  |  |  |  |  |  |  |
Stock-based compensation, exercise price (in usd per share) |  | $ 1.72 |  |  |  |  |  |  |  |  |
Share-based payment arrangement |  |  |  |  |  |  |  | $ 1,200,000 |  |  |
Repricing cost during the period |  |  |  |  |  |  |  | $ 100,000 | $ 900,000 |  |
Expected dividend yield (as percent) |  | 0.00% | 0.00% |  |  |  |  | 0.00% |  |  |
Weight average fair value repriced stock options (in usd per share) |  |  |  |  |  |  |  |  | $ 1.22 |  |
Period over which compensation cost will be recognized (in years) |  |  |  |  |  |  |  | 2 years 11 months 12 days |  |  |
General and administrative |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  | $ 27,000 | $ 600,000 |  |
Research and development |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  | 24,000 | 300,000 |  |
Maximum |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Expected term of options (in years) |  | 4 years 7 months 28 days | 4 years 9 months 21 days |  |  |  |  |  |  |  |
Exercised (in usd per share) |  | $ 3.00 |  |  |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Expected term of options (in years) |  | 1 year 7 months 28 days | 1 year 9 months 21 days |  |  |  |  |  |  |  |
Exercised (in usd per share) |  | $ 1.72 |  |  |  |  |  |  |  |  |
2021 Employee stock purchase plan |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum annual contributions per employee (as a percent) |  |  |  |  |  | 15.00% |  |  |  |  |
Purchase price of the stock, at discount from market price at purchase date (as a percent) |  |  |  |  |  | 85.00% |  |  |  |  |
Shares available for grant (in shares) |  | 1,200,000 |  |  |  | 200,000 |  |  |  |  |
Additional shares authorized (in shares) |  | 1,000,000 |  |  |  |  |  |  |  |  |
Shares issued under the ESPP (in shares) |  |  |  |  | 271,842 |  |  |  |  |  |
Share-based compensation expense |  |  |  |  |  |  |  | $ 26,000 | $ 0 |  |
2019 Omnibus Equity Incentive Plan |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares available for grant (in shares) |  |  |  |  |  |  | 1,500,000 |  |  |  |
Expected term of options (in years) |  |  |  |  |  |  |  | 3 years 6 months | 6 years 7 days |  |
Expected dividend yield (as percent) |  |  |  |  |  |  |  | 0.00% | 0.00% |  |
Options granted in period, weighted-average grant date fair value (in usd per share) |  |  |  |  |  |  |  | $ 0.65 | $ 0.97 |  |
Total unrecognized compensation expense |  |  |  |  |  |  |  | $ 11,500,000 |  |  |
2019 Omnibus Equity Incentive Plan | Incentive stock options |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  |  |  |  |  |  | 4 years |  |  |
2019 Omnibus Equity Incentive Plan | Maximum |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Expected term of options (in years) |  |  |  |  |  |  |  | 10 years |  |  |
2019 Omnibus Equity Incentive Plan | Maximum | Non-statutory options |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  |  |  |  |  |  | 4 years |  |  |
2019 Omnibus Equity Incentive Plan | Minimum | Non-statutory options |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  |  |  |  |  |  | 3 years |  |  |
2019 Omnibus Equity Incentive Plan, Evergreen Provision |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Additional shares authorized (in shares) |  |  |  |  |  |  | 4,900,000 |  |  | 4,408,871 |
Additional shares authorized (as a percent) |  |  |  |  |  |  | 4.00% |  |  |  |
Increase in other share (in shares) |  | 9,100,000 |  | 4,440,000 |  |  |  |  |  |  |
2019 Omnibus Equity Incentive Plan, Evergreen Provision | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proposed amendment to shares authorized (in shares) | 7,000,000 |  |  |  |  |  |  |  |  |  |
2014 Equity Incentive Plan |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares available for grant (in shares) |  |  |  |  |  |  |  | 0 |  |  |
2017 Inducement Equity Incentive Plan |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares available for grant (in shares) |  |  |  |  |  |  |  |  |  |  | 46,250
Share-based compensation expense |  |  |  |  |  |  |  | $ 0 | $ 0 |  |

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