Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-24-000037-index-headers.html | 2024-05-09 16:19:50 | |
| 0000059255-24-000037-index.html | 2024-05-09 16:19:50 | |
| 0000059255-24-000037.txt | 2024-05-09 16:19:50 | |
 0000059255-24-000037-xbrl.zip | 18764 | 2024-05-09 16:19:50 |
| FilingSummary.xml | 1923 | 2024-05-09 16:19:50 |
| Financial_Report.xlsx | 5697 | 2024-05-09 16:19:50 |
| MetaLinks.json | 17018 | 2024-05-09 16:19:50 |
| R1.htm | 39621 | 2024-05-09 16:19:50 |
| report.css | 2767 | 2024-05-09 16:19:50 |
| Show.js | 1085 | 2024-05-09 16:19:50 |
| vhl-20240509.xsd | 3394 | 2024-05-09 16:19:50 |
| vhl-20240509x8k.htm | 48867 | 2024-05-09 16:19:50 |
| vhl-20240509x8k_htm.xml | 4778 | 2024-05-09 16:19:50 |
| vhl-20240509xex99d1.htm | 133893 | 2024-05-09 16:19:50 |
 vhl-20240509xex99d1001.jpg | 7147 | 2024-05-09 16:19:50 |
| vhl-20240509_lab.xml | 15924 | 2024-05-09 16:19:50 |
| vhl-20240509_pre.xml | 10315 | 2024-05-09 16:19:50 |