Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-19-016893-index-headers.html | 2019-11-12 16:08:17 | |
| 0001493152-19-016893-index.html | 2019-11-12 16:08:17 | |
| 0001493152-19-016893.txt | 2019-11-12 16:08:17 | |
 0001493152-19-016893-xbrl.zip | 122555 | 2019-11-12 16:08:17 |
| ex31-1.htm | 11285 | 2019-11-12 16:08:17 |
| ex31-2.htm | 11764 | 2019-11-12 16:08:17 |
| ex32-1.htm | 6911 | 2019-11-12 16:08:17 |
| FilingSummary.xml | 27774 | 2019-11-12 16:08:17 |
| Financial_Report.xlsx | 75074 | 2019-11-12 16:08:17 |
| form10-q.htm | 549568 | 2019-11-12 16:08:17 |
| R1.htm | 31066 | 2019-11-12 16:08:17 |
| R10.htm | 12175 | 2019-11-12 16:08:17 |
| R11.htm | 9190 | 2019-11-12 16:08:17 |
| R12.htm | 17958 | 2019-11-12 16:08:17 |
| R13.htm | 13960 | 2019-11-12 16:08:17 |
| R14.htm | 8977 | 2019-11-12 16:08:17 |
| R15.htm | 6550 | 2019-11-12 16:08:17 |
| R16.htm | 9370 | 2019-11-12 16:08:17 |
| R17.htm | 26871 | 2019-11-12 16:08:17 |
| R18.htm | 4818 | 2019-11-12 16:08:17 |
| R19.htm | 141562 | 2019-11-12 16:08:17 |
| R2.htm | 114730 | 2019-11-12 16:08:17 |
| R20.htm | 30382 | 2019-11-12 16:08:17 |
| R21.htm | 8808 | 2019-11-12 16:08:17 |
| R22.htm | 11060 | 2019-11-12 16:08:17 |
| R23.htm | 8807 | 2019-11-12 16:08:17 |
| R24.htm | 14734 | 2019-11-12 16:08:17 |
| R25.htm | 14761 | 2019-11-12 16:08:17 |
| R26.htm | 14918 | 2019-11-12 16:08:17 |
| R27.htm | 73720 | 2019-11-12 16:08:17 |
| R28.htm | 20153 | 2019-11-12 16:08:17 |
| R29.htm | 14996 | 2019-11-12 16:08:17 |
| R3.htm | 25008 | 2019-11-12 16:08:17 |
| R30.htm | 36502 | 2019-11-12 16:08:17 |
| R31.htm | 4267 | 2019-11-12 16:08:17 |
| R32.htm | 9972 | 2019-11-12 16:08:17 |
| R33.htm | 5323 | 2019-11-12 16:08:17 |
| R34.htm | 17352 | 2019-11-12 16:08:17 |
| R35.htm | 5587 | 2019-11-12 16:08:17 |
| R36.htm | 8827 | 2019-11-12 16:08:17 |
| R37.htm | 22230 | 2019-11-12 16:08:17 |
| R38.htm | 13261 | 2019-11-12 16:08:17 |
| R39.htm | 20178 | 2019-11-12 16:08:17 |
| R4.htm | 60766 | 2019-11-12 16:08:17 |
| R40.htm | 15071 | 2019-11-12 16:08:17 |
| R41.htm | 12583 | 2019-11-12 16:08:17 |
| R42.htm | 35627 | 2019-11-12 16:08:17 |
| R43.htm | 19058 | 2019-11-12 16:08:17 |
| R44.htm | 25866 | 2019-11-12 16:08:17 |
| R45.htm | 63215 | 2019-11-12 16:08:17 |
| R46.htm | 28997 | 2019-11-12 16:08:17 |
| R5.htm | 43096 | 2019-11-12 16:08:17 |
| R6.htm | 90465 | 2019-11-12 16:08:17 |
| R7.htm | 85926 | 2019-11-12 16:08:17 |
| R8.htm | 7904 | 2019-11-12 16:08:17 |
| R9.htm | 8443 | 2019-11-12 16:08:17 |
| report.css | 2767 | 2019-11-12 16:08:17 |
| Show.js | 1085 | 2019-11-12 16:08:17 |
| vtsi-20190930.xml | 618723 | 2019-11-12 16:08:17 |
| vtsi-20190930.xsd | 47654 | 2019-11-12 16:08:17 |
| vtsi-20190930_cal.xml | 67304 | 2019-11-12 16:08:17 |
| vtsi-20190930_def.xml | 198765 | 2019-11-12 16:08:17 |
| vtsi-20190930_lab.xml | 348963 | 2019-11-12 16:08:17 |
| vtsi-20190930_pre.xml | 261256 | 2019-11-12 16:08:17 |