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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