v3.26.3
Income taxes - Summary of reconciliation of effective rate of the company's provision (benefit) for income taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Effective Income Tax Rate Reconciliation [Line Items]    
U.S. federal statutory tax rate, Amount $ (9,564)  
Tax Jurisdiction of Domicile [Extensible Enumeration] stpr:DE  
State and local income taxes, Amount $ 0  
Foreign rate differential, Amount (52)  
Change in valuation allowance, Amount 5,098  
Stock-based compensation, Amount 638  
Other permanent differences, Amount 50  
Section 162m DTA adjustment , Amount 4,076  
Other deferred true up, Amount (246)  
Provision for income taxes, Amount $ 0  
U.S. federal statutory tax rate 21.00% 21.00%
State and local income taxes 0.00%  
Permanent differences   (0.09%)
Stock-based compensation (1.40%)  
Other permanent differences (0.11%)  
Section 162m DTA adjustment (8.95%)  
Other deferred true up , Percent 0.54%  
Share-based payments   (0.53%)
Foreign tax rate differential 0.12% 0.02%
Change in valuation allowance (11.19%) (11.82%)
Section 382 Write-off   (0.00%)
Section 162m Write-off   (8.58%)
Provision for income taxes 0.00% 0.00%