Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-25-000071-index-headers.html | 2025-08-07 16:22:45 | |
| 0000059255-25-000071-index.html | 2025-08-07 16:22:45 | |
| 0000059255-25-000071.txt | 2025-08-07 16:22:45 | |
 0000059255-25-000071-xbrl.zip | 22837 | 2025-08-07 16:22:45 |
| FilingSummary.xml | 1703 | 2025-08-07 16:22:45 |
| MetaLinks.json | 17045 | 2025-08-07 16:22:45 |
| R1.htm | 39605 | 2025-08-07 16:22:45 |
| report.css | 2767 | 2025-08-07 16:22:45 |
| Show.js | 1085 | 2025-08-07 16:22:45 |
| vhl-20250807.xsd | 3253 | 2025-08-07 16:22:45 |
| vhl-20250807x8k.htm | 55091 | 2025-08-07 16:22:45 |
| vhl-20250807x8k_htm.xml | 4778 | 2025-08-07 16:22:45 |
| vhl-20250807xex99d1.htm | 211156 | 2025-08-07 16:22:45 |
 vhl-20250807xex99d1001.jpg | 7147 | 2025-08-07 16:22:45 |
| vhl-20250807xex99d2.htm | 4869 | 2025-08-07 16:22:45 |
 vhl-20250807xex99d2001.jpg | 6069 | 2025-08-07 16:22:45 |
| vhl-20250807_lab.xml | 15924 | 2025-08-07 16:22:45 |
| vhl-20250807_pre.xml | 10315 | 2025-08-07 16:22:45 |