Note 11 - Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis (Details) (Parentheticals) |
Apr. 30, 2025 |
|---|---|
| Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Accrued Employee Benefits, Current |
| X | ||||||||||
- Definition Indicates line item in statement of financial position that includes derivative liability. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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