Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-21-028778-index-headers.html | 2021-11-15 17:31:21 | |
| 0001493152-21-028778-index.html | 2021-11-15 17:31:21 | |
| 0001493152-21-028778.txt | 2021-11-15 17:31:21 | |
 0001493152-21-028778-xbrl.zip | 24900 | 2021-11-15 17:31:21 |
| ex99-1.htm | 242172 | 2021-11-15 17:31:21 |
 ex99-1_001.jpg | 6849 | 2021-11-15 17:31:21 |
| FilingSummary.xml | 1599 | 2021-11-15 17:31:21 |
| Financial_Report.xlsx | 5698 | 2021-11-15 17:31:21 |
| form8-k.htm | 35251 | 2021-11-15 17:31:21 |
| form8-k_htm.xml | 3583 | 2021-11-15 17:31:21 |
| MetaLinks.json | 37649 | 2021-11-15 17:31:21 |
| R1.htm | 40346 | 2021-11-15 17:31:21 |
| report.css | 2767 | 2021-11-15 17:31:21 |
| Show.js | 1085 | 2021-11-15 17:31:21 |
| vtsi-20211115.xsd | 3019 | 2021-11-15 17:31:21 |
| vtsi-20211115_lab.xml | 34240 | 2021-11-15 17:31:21 |
| vtsi-20211115_pre.xml | 22355 | 2021-11-15 17:31:21 |