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Payments of other incidental costs.

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Percentage of commission of sale of share.

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Percentage on proceeds of the underwritten offering.

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Percentage on proceeds received by the company from the direct offering.

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Exercise price per share or per unit of warrants or rights outstanding.

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-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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Stockholders' equity - Additional information (Detail) - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended
	Nov. 05, 2025	Mar. 25, 2025	Oct. 11, 2024	Dec. 20, 2020	Jun. 30, 2026	Jun. 30, 2025	Dec. 06, 2024	Aug. 29, 2024	Jun. 30, 2024	Dec. 06, 2023	Dec. 07, 2022	Dec. 08, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognised share based compensation expense					$ 26,000	$ 26,600
Common Stock Shares Authorized					160,000,000	160,000,000
Warrants outstanding					20,017,501	20,443,496			34,271,146
Gross proceeds from share issued		$ 18,800			$ 104,495	$ 30,460
Payemnt of stock cash issuance costs		400
Payments of stock issuance costs		$ 1,100			$ 6,266	$ 2,319
Common stock, par or stated value per share					$ 0.0001	$ 0.0001
Preferred Stock, Shares Outstanding					0	0
Preferred Stock, Shares Issued					0	0
Preferred Stock, Par Value					$ 0.0001	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized					5,000,000	5,000,000	5,000,000
Common stock shares reserved for future issuance					36,222,038	36,648,033
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value					$ 12.07	$ 10.7
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					2 years 9 months 21 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		$ 13
Class of warrant or right, exercise price of warrants or rights					$ 0.0001
Net proceeds from public offering	$ 100,000
Gross proceeds from share issued		$ 11,700			$ 104,500
Payments of stock issuance costs		$ 700			$ 5,700
Excercise of options					63,792	1,553,927
Payments of other incidental costs					$ 600
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	$ 0.0001	$ 13
Issue of common stock and warrant price per share		13.00%
Common stock, par or stated value per share		$ 0.0001
Shares issued	889,500
Excercise of options	328,889
Proceeds from stock options excercised	$ 4,400
Shares issued, price per share	$ 13.5
Percentage on proceeds of the underwritten offering	6.00%
Pre-funded warrants [Member] \| Underwriting agreement [member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sale of stock issue price per share		12.999
Class of warrant or right, exercise price of warrants or rights		$ 0.0001
Issue of common stock and warrant price per share		12.999%
Debt conversion, converted instrument, warrants or options issued		300,000
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	$ 13.5
Percentage on proceeds received	6.00%