Note 20 - Defined Contribution Plan (Details Textual) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2026 |
Apr. 30, 2025 |
|
| Defined Benefit Plans, Matching Contribution Vesting Period (Year) | 5 years | |||
| Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 1.1 | $ 1.1 | $ 1.1 | $ 1.1 |