Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000059255-23-000056-index-headers.html | 2023-08-03 16:18:48 | |
| 0000059255-23-000056-index.html | 2023-08-03 16:18:48 | |
| 0000059255-23-000056.txt | 2023-08-03 16:18:48 | |
 0000059255-23-000056-xbrl.zip | 21161 | 2023-08-03 16:18:48 |
| FilingSummary.xml | 2417 | 2023-08-03 16:18:48 |
| Financial_Report.xlsx | 6678 | 2023-08-03 16:18:48 |
| MetaLinks.json | 96926 | 2023-08-03 16:18:48 |
| R1.htm | 39604 | 2023-08-03 16:18:48 |
| R2.htm | 22669 | 2023-08-03 16:18:48 |
| report.css | 2767 | 2023-08-03 16:18:48 |
| Show.js | 1085 | 2023-08-03 16:18:48 |
| vhl-20230803.xsd | 3238 | 2023-08-03 16:18:48 |
| vhl-20230803x8k.htm | 53818 | 2023-08-03 16:18:48 |
| vhl-20230803x8k_htm.xml | 4778 | 2023-08-03 16:18:48 |
| vhl-20230803xex99d1.htm | 207698 | 2023-08-03 16:18:48 |
 vhl-20230803xex99d1001.jpg | 7147 | 2023-08-03 16:18:48 |
| vhl-20230803xex99d2.htm | 4970 | 2023-08-03 16:18:48 |
 vhl-20230803xex99d2001.jpg | 6069 | 2023-08-03 16:18:48 |
| vhl-20230803_lab.xml | 632 | 2023-08-03 16:18:48 |
| vhl-20230803_pre.xml | 10663 | 2023-08-03 16:18:48 |