v3.25.2
Stockholders' equity - Derivative Warrant Liabilities Measured at Fair Value and Reconciliation of Changes in Fair Value (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 25, 2023
Jun. 30, 2025
Jun. 30, 2024
Stockholders’ equity [Abstract]      
Beginning balance   $ 1,141 $ 4,359
Issued during the year $ 1,631 0 0
Change in fair value   $ 487 $ (1,395)
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]   Change in fair value of derivative warrant liabilities Change in fair value of derivative warrant liabilities
Ending balance   $ 1,628 $ 2,964