Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-24-000004-index-headers.html | 2024-02-12 16:39:34 | |
| 0000059255-24-000004-index.html | 2024-02-12 16:39:34 | |
| 0000059255-24-000004.txt | 2024-02-12 16:39:34 | |
 0000059255-24-000004-xbrl.zip | 10230 | 2024-02-12 16:39:34 |
| FilingSummary.xml | 1705 | 2024-02-12 16:39:34 |
| Financial_Report.xlsx | 5696 | 2024-02-12 16:39:34 |
| MetaLinks.json | 17022 | 2024-02-12 16:39:34 |
| R1.htm | 39621 | 2024-02-12 16:39:34 |
| report.css | 2766 | 2024-02-12 16:39:34 |
| Show.js | 1084 | 2024-02-12 16:39:34 |
| vhl-20240212.xsd | 3396 | 2024-02-12 16:39:34 |
| vhl-20240212x8k.htm | 56571 | 2024-02-12 16:39:34 |
| vhl-20240212x8k_htm.xml | 4826 | 2024-02-12 16:39:34 |
| vhl-20240212_lab.xml | 15926 | 2024-02-12 16:39:34 |
| vhl-20240212_pre.xml | 10317 | 2024-02-12 16:39:34 |