Note 25 - Defined Contribution Plans (Details Textual) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2024 |
|
| Defined Benefit Plans, Matching Contribution Vesting Period (Year) | 5 years | ||
| Defined Contribution Plan, Cost | $ 1 | $ 1 | $ 1 |