Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-23-000043-index-headers.html | 2023-05-09 16:30:35 | |
| 0000059255-23-000043-index.html | 2023-05-09 16:30:35 | |
| 0000059255-23-000043.txt | 2023-05-09 16:30:35 | |
 0000059255-23-000043-xbrl.zip | 8880 | 2023-05-09 16:30:35 |
| FilingSummary.xml | 2335 | 2023-05-09 16:30:35 |
| Financial_Report.xlsx | 6674 | 2023-05-09 16:30:35 |
| MetaLinks.json | 96926 | 2023-05-09 16:30:35 |
| R1.htm | 39602 | 2023-05-09 16:30:35 |
| R2.htm | 22667 | 2023-05-09 16:30:35 |
| report.css | 2767 | 2023-05-09 16:30:35 |
| Show.js | 1084 | 2023-05-09 16:30:35 |
| vhl-20230508.xsd | 3236 | 2023-05-09 16:30:35 |
| vhl-20230508x8k.htm | 51875 | 2023-05-09 16:30:35 |
| vhl-20230508x8k_htm.xml | 4778 | 2023-05-09 16:30:35 |
| vhl-20230508_lab.xml | 630 | 2023-05-09 16:30:35 |
| vhl-20230508_pre.xml | 10661 | 2023-05-09 16:30:35 |