Summary of Significant Accounting Policies - Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
May 31, 2025	May 31, 2024
Summary of Significant Accounting Policies
Federal statutory income tax rate, percent	21.00%	21.00%
Income tax expense	$ 0	$ 0

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details