Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-25-000006-index-headers.html | 2025-03-06 16:40:33 | |
| 0000059255-25-000006-index.html | 2025-03-06 16:40:33 | |
| 0000059255-25-000006.txt | 2025-03-06 16:40:33 | |
 0000059255-25-000006-xbrl.zip | 23587 | 2025-03-06 16:40:33 |
| FilingSummary.xml | 1705 | 2025-03-06 16:40:33 |
| Financial_Report.xlsx | 5699 | 2025-03-06 16:40:33 |
| MetaLinks.json | 17045 | 2025-03-06 16:40:33 |
| R1.htm | 39621 | 2025-03-06 16:40:33 |
| report.css | 2767 | 2025-03-06 16:40:33 |
| Show.js | 1085 | 2025-03-06 16:40:33 |
| vhl-20250306.xsd | 3253 | 2025-03-06 16:40:33 |
| vhl-20250306x8k.htm | 54487 | 2025-03-06 16:40:33 |
| vhl-20250306x8k_htm.xml | 4778 | 2025-03-06 16:40:33 |
| vhl-20250306xex99d1.htm | 225231 | 2025-03-06 16:40:33 |
 vhl-20250306xex99d1001.jpg | 7147 | 2025-03-06 16:40:33 |
| vhl-20250306xex99d2.htm | 4881 | 2025-03-06 16:40:33 |
 vhl-20250306xex99d2001.jpg | 6069 | 2025-03-06 16:40:33 |
| vhl-20250306_lab.xml | 15924 | 2025-03-06 16:40:33 |
| vhl-20250306_pre.xml | 10315 | 2025-03-06 16:40:33 |