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Summary of Significant Accounting Policies - Summary of components of marketable securities (Details) - USD ($)
$ in Thousands
12 Months Ended
May 31, 2024
May 31, 2023
Marketable Securities [Line Items]    
Amortized Cost $ 325 $ 83,549
Commercial Paper And Corporate Bonds [Member]    
Marketable Securities [Line Items]    
Amortized Cost 325 83,549
Unrealized Gains 0 0
Unrealized Losses   (1,220)
Fair Value $ 325 $ 82,329