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Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($)
$ in Thousands
 12 Months Ended
May 31, 2024
May 31, 2023
Current expense (benefit)    
Federal $ 0 $ 0
Foreign 0 0
State 96 18
Total current expense 96 18
Deferred expense (benefit)    
Federal 0 (540)
Foreign 0 0
State 0 0
Total deferred (benefit) expense 0 (540)
Total income tax (benefit) expense $ 96 $ (523)