v3.25.2
Stockholders' equity - Derivative Warrant Liabilities Measured at Fair Value and Reconciliation of Changes in Fair Value (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 25, 2023
Mar. 31, 2025
Mar. 31, 2024
Changes in Fair Value [Roll Forward]      
Beginning balance   $ 4,359 $ 0
Issued during the year $ 1,631 0 1,631
Change in fair value   $ 3,218 $ 2,728
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   $ 1,141 $ 4,359