Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-25-000062-index-headers.html | 2025-05-22 16:16:55 | |
| 0000059255-25-000062-index.html | 2025-05-22 16:16:55 | |
| 0000059255-25-000062.txt | 2025-05-22 16:16:55 | |
 0000059255-25-000062-xbrl.zip | 12381 | 2025-05-22 16:16:55 |
| FilingSummary.xml | 1703 | 2025-05-22 16:16:55 |
| MetaLinks.json | 17049 | 2025-05-22 16:16:55 |
| R1.htm | 39601 | 2025-05-22 16:16:55 |
| report.css | 2767 | 2025-05-22 16:16:55 |
| Show.js | 1084 | 2025-05-22 16:16:55 |
| vhl-20250522.xsd | 3256 | 2025-05-22 16:16:55 |
| vhl-20250522x8k.htm | 54786 | 2025-05-22 16:16:55 |
| vhl-20250522x8k_htm.xml | 4826 | 2025-05-22 16:16:55 |
| vhl-20250522xex99d1.htm | 7104 | 2025-05-22 16:16:55 |
 vhl-20250522xex99d1001.jpg | 6069 | 2025-05-22 16:16:55 |
| vhl-20250522_lab.xml | 15927 | 2025-05-22 16:16:55 |
| vhl-20250522_pre.xml | 10318 | 2025-05-22 16:16:55 |