v3.25.4

Stockholders' equity - Additional information (Detail) $ / shares in Units, $ in Thousands |  |  |  |  |  |  |  |  | 6 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 05, 2025 USD ($) $ / shares shares | Mar. 25, 2025 USD ($) $ / shares shares | Oct. 11, 2024 USD ($) | Apr. 22, 2024 USD ($) $ / shares shares | Aug. 11, 2023 USD ($) $ / shares shares | Sep. 15, 2022 $ / shares shares | Dec. 20, 2020 | Apr. 22, 2020 shares | Dec. 31, 2025 USD ($) $ / shares shares | Dec. 31, 2024 USD ($) shares | Sep. 30, 2025 shares | Jun. 30, 2025 $ / shares shares | Dec. 06, 2024 $ / shares shares | Aug. 29, 2024 shares | Dec. 06, 2023 shares | Dec. 07, 2022 shares | Dec. 08, 2021 shares | Dec. 06, 2019 shares $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock number of shares issued in the transaction |  |  |  | 5,749,152 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock issue price per share | $ / shares |  |  |  | $ 4.8 | $ 1.9299 |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights | $ / shares |  |  |  |  |  | $ 11.22 |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from public offering | $ |  |  |  |  | $ 27,900 |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognised share based compensation expense | $ |  |  |  |  |  |  |  |  | $ 37,800 |  |  |  |  |  |  |  |  |
Common Stock Shares Authorized |  |  |  |  |  |  |  |  | 160,000,000 |  |  | 160,000,000 |  |  |  |  |  |
Warrants outstanding |  |  |  |  |  |  |  |  | 20,179,428 |  | 20,443,496 | 20,443,496 |  |  |  |  |  |
Gross proceeds from share issued | $ |  | $ 18,800 |  |  |  |  |  |  | $ 104,495 | $ 0 |  |  |  |  |  |  |  |
Payemnt of stock cash issuance costs | $ |  | 400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of stock issuance costs | $ |  | $ 1,100 |  |  |  |  |  |  | $ 6,265 | $ 2 |  |  |  |  |  |  |  |
Common stock, par or stated value per share | $ / shares |  |  |  |  |  |  |  |  | $ 0.0001 |  |  | $ 0.0001 |  |  |  |  |  |
Preferred Stock, Shares Outstanding |  |  |  |  |  |  |  |  | 0 |  |  | 0 |  |  |  |  |  |
Preferred Stock, Shares Issued |  |  |  |  |  |  |  |  | 0 |  |  | 0 |  |  |  |  |  |
Preferred Stock, Par Value | $ / shares |  |  |  |  |  |  |  |  | $ 0.0001 |  |  | $ 0.0001 | $ 0.0001 |  |  |  |  |
Preferred Stock, Shares Authorized |  |  |  |  |  |  |  |  | 5,000,000 |  |  | 5,000,000 | 5,000,000 |  |  |  |  |
Percentage on proceeds received | 6.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from public offering | $ |  |  | $ 75,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage Of Commission Of Sale Of Share |  |  | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Two Thousand And Twenty Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares reserved for future issuance |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,204,537 | 1,204,537 |  | 108,823 |
Two Thousand And Twenty Equity Incentive Plan [Member] | Employee stock option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation by share based award unrecognized expense remaining period of recognition |  |  |  |  |  |  |  |  | 3 years 3 months 14 days |  |  |  |  |  |  |  |  |
Share based compensation by share based award contractual term |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock Shares Authorized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 160,000,000 | 40,000,000 |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock Shares Authorized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40,000,000 | 10,000,000 |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock number of shares issued in the transaction |  | 900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock issue price per share | $ / shares |  | $ 13 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights | $ / shares |  |  |  |  |  |  |  |  | $ 0.0001 |  |  |  |  |  |  |  |  |
Net proceeds from public offering | $ | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants convertible into shares of common stock on exercise |  |  |  |  | 2,331,606 |  |  | 6,300 |  | 458,134 |  |  |  |  |  |  |  |
Cashless exercise of purchase warrants (In shares) |  |  |  |  |  |  |  | 2,201 |  |  |  |  |  |  |  |  |  |
Gross proceeds from share issued | $ |  | $ 11,700 |  |  |  |  |  |  | $ 104,500 |  |  |  |  |  |  |  |  |
Payments of stock issuance costs | $ |  | $ 700 |  |  |  |  |  |  | 5,700 |  |  |  |  |  |  |  |  |
Payments of other incidental costs | $ |  |  |  |  |  |  |  |  | $ 600 |  |  |  |  |  |  |  |  |
Class of warrant or right, unissued |  |  |  |  |  |  |  |  |  | 6,300 |  |  |  |  |  |  |  |
Common Stock [Member] | Underwriting agreement [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock number of shares issued in the transaction | 5,930,000 | 1,143,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock issue price per share | $ / shares | $ 0.0001 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issue of common stock and warrant price per share |  | 13.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, par or stated value per share | $ / shares |  | $ 0.0001 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued | 889,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued, price per share | $ / shares | $ 13.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage on proceeds of the underwritten offering | 6.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights | $ / shares |  |  |  |  | $ 3.86 |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants convertible into shares of common stock on exercise |  |  |  |  | 2,331,606 |  |  |  |  | 458,134 |  |  |  |  |  |  |  |
Purchase warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 178.5
Warrants convertible into shares of common stock on exercise |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,600
Number of series of warrants issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4
Expiry date of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Dec. 06, 2024
Pre-funded warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock number of shares issued in the transaction |  |  |  |  | 15,126,226 |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock issue price per share | $ / shares |  |  |  |  | $ 1.9298 |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights | $ / shares |  |  |  | $ 0.0001 | $ 0.0001 |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants convertible into shares of common stock on exercise |  |  |  | 2,584,239 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds From Issuance Of Warrants | $ |  |  |  | $ 37,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from issuance of warrants | $ |  |  |  | $ 40,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant purchase price per warrant | $ / shares |  |  |  | $ 4.7999 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pre-funded warrants [Member] | Underwriting agreement [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights | $ / shares |  | $ 0.0001 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issue of common stock and warrant price per share |  | 12.999% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt conversion, converted instrument, warrants or options issued |  | 300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IPO [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock number of shares issued in the transaction |  |  |  |  | 875,949 | 1,037,520 |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock issue price per share | $ / shares |  |  |  |  | $ 1.9299 | $ 10.03 |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights | $ / shares |  |  |  |  |  | $ 0.0017 |  |  |  |  |  |  |  |  |  |  |  |
Warrants convertible into shares of common stock on exercise |  |  |  |  | 16,002,175 | 715,979 |  |  |  |  |  |  |  |  |  |  |  |
Warrants outstanding |  |  |  |  |  | 29,809,471 |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or rights issued during period |  |  |  |  | 16,002,175 | 12,171,628 |  |  |  |  |  |  |  |  |  |  |  |
Issue of common stock and warrant price per share |  |  |  |  | 1.93% | 10.20% |  |  |  |  |  |  |  |  |  |  |  |
Class of warrants or rights issue price per unit | $ / shares |  |  |  |  | $ 0.0001 | $ 0.17 |  |  |  |  |  |  |  |  |  |  |  |
IPO [Member] | Series 2 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right, exercise price of warrants or rights | $ / shares |  |  |  |  | $ 1.9299 |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants convertible into shares of common stock on exercise |  |  |  |  |  | 1,753,503 |  |  |  |  |  |  |  |  |  |  |  |
IPO [Member] | Pre-funded warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants convertible into shares of common stock on exercise |  |  |  |  | 15,126,226 |  |  |  |  |  |  |  |  |  |  |  |  |
Suvretta Funds [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock number of shares issued in the transaction | 1,481,481 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock issue price per share | $ / shares | $ 13.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage on proceeds received | 6.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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