Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-25-000023-index-headers.html | 2025-04-02 16:15:51 | |
| 0000059255-25-000023-index.html | 2025-04-02 16:15:51 | |
| 0000059255-25-000023.txt | 2025-04-02 16:15:51 | |
 0000059255-25-000023-xbrl.zip | 213096 | 2025-04-02 16:15:51 |
| FilingSummary.xml | 4481 | 2025-04-02 16:15:51 |
| MetaLinks.json | 109404 | 2025-04-02 16:15:51 |
| R1.htm | 8956 | 2025-04-02 16:15:51 |
| R2.htm | 131668 | 2025-04-02 16:15:51 |
| R3.htm | 9217 | 2025-04-02 16:15:51 |
| R4.htm | 4459 | 2025-04-02 16:15:51 |
| R5.htm | 4370 | 2025-04-02 16:15:51 |
| report.css | 2767 | 2025-04-02 16:15:51 |
| Show.js | 1085 | 2025-04-02 16:15:51 |
| vhl-20250522.xsd | 4398 | 2025-04-02 16:15:51 |
| vhl-20250522xdef14a.htm | 1094090 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a001.jpg | 11170 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a002.jpg | 4471 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a003.jpg | 7218 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a004.jpg | 2517 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a015.jpg | 54639 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a016.jpg | 50901 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a018.jpg | 3218 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a019.jpg | 1501 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a020.jpg | 1493 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a021.jpg | 3781 | 2025-04-02 16:15:51 |
 vhl-20250522xdef14a022.jpg | 3482 | 2025-04-02 16:15:51 |
| vhl-20250522xdef14a_htm.xml | 120949 | 2025-04-02 16:15:51 |
| vhl-20250522_def.xml | 3102 | 2025-04-02 16:15:51 |
| vhl-20250522_lab.xml | 5836 | 2025-04-02 16:15:51 |
| vhl-20250522_pre.xml | 5441 | 2025-04-02 16:15:51 |