Note 1 - Basis of Presentation (Details Textual) |
12 Months Ended |
|---|---|
Oct. 31, 2025 | |
| Organization Consolidation and Presentation of Financial Statements Disclosure [Line Items] | |
| Noncontrolling Interest, Description | Noncontrolling interest represents the proportionate equity interest in a consolidated joint venture that is not 100% owned by HEI, directly or indirectly; we sold our membership interest in such joint venture during the first quarter of fiscal 2024. |
| Percentage of equity interest in a consolidated joint venture that is not owned by the Company directly or indirectly | 100.00% |