Income Taxes - Reconciliation of the beginning and ending amount of the valuation allowance (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
May 31, 2025 |
May 31, 2024 |
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| Income Taxes | ||
| Valuation allowance at beginning of year | $ 128,636 | $ 128,579 |
| Change in valuation allowance | (2,433) | 57 |
| Valuation allowance at end of year | $ 126,203 | $ 128,636 |
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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