Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-22-012106-index-headers.html | 2022-05-04 16:44:54 | |
| 0001493152-22-012106-index.html | 2022-05-04 16:44:54 | |
| 0001493152-22-012106.txt | 2022-05-04 16:44:54 | |
 0001493152-22-012106-xbrl.zip | 12403 | 2022-05-04 16:44:54 |
| ex16-1.htm | 5553 | 2022-05-04 16:44:54 |
 ex16-1_001.jpg | 3581 | 2022-05-04 16:44:54 |
| FilingSummary.xml | 1612 | 2022-05-04 16:44:54 |
| Financial_Report.xlsx | 5749 | 2022-05-04 16:44:54 |
| form8-k.htm | 41538 | 2022-05-04 16:44:54 |
| form8-k_htm.xml | 3745 | 2022-05-04 16:44:54 |
| MetaLinks.json | 38412 | 2022-05-04 16:44:54 |
| R1.htm | 42106 | 2022-05-04 16:44:54 |
| report.css | 2767 | 2022-05-04 16:44:54 |
| Show.js | 1085 | 2022-05-04 16:44:54 |
| vtsi-20220502.xsd | 3027 | 2022-05-04 16:44:54 |
| vtsi-20220502_lab.xml | 35156 | 2022-05-04 16:44:54 |
| vtsi-20220502_pre.xml | 23025 | 2022-05-04 16:44:54 |