Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-24-000012-index-headers.html | 2024-03-07 16:16:59 | |
| 0000059255-24-000012-index.html | 2024-03-07 16:16:59 | |
| 0000059255-24-000012.txt | 2024-03-07 16:16:59 | |
 0000059255-24-000012-xbrl.zip | 21116 | 2024-03-07 16:16:59 |
| FilingSummary.xml | 1705 | 2024-03-07 16:16:59 |
| Financial_Report.xlsx | 5699 | 2024-03-07 16:16:59 |
| MetaLinks.json | 17018 | 2024-03-07 16:16:59 |
| R1.htm | 39622 | 2024-03-07 16:16:59 |
| report.css | 2767 | 2024-03-07 16:16:59 |
| Show.js | 1085 | 2024-03-07 16:16:59 |
| vhl-20240307.xsd | 3396 | 2024-03-07 16:16:59 |
| vhl-20240307x8k.htm | 48617 | 2024-03-07 16:16:59 |
| vhl-20240307x8k_htm.xml | 4778 | 2024-03-07 16:16:59 |
| vhl-20240307xex99d1.htm | 214414 | 2024-03-07 16:16:59 |
 vhl-20240307xex99d1001.jpg | 7147 | 2024-03-07 16:16:59 |
| vhl-20240307_lab.xml | 15926 | 2024-03-07 16:16:59 |
| vhl-20240307_pre.xml | 10317 | 2024-03-07 16:16:59 |