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|---|---|---|
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| 0001493152-22-020976-index.html | 2022-08-02 15:24:02 | |
| 0001493152-22-020976.txt | 2022-08-02 15:24:02 | |
 0001493152-22-020976-xbrl.zip | 284299 | 2022-08-02 15:24:02 |
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| ex32-1.htm | 7885 | 2022-08-02 15:24:02 |
| FilingSummary.xml | 33974 | 2022-08-02 15:24:02 |
| Financial_Report.xlsx | 108467 | 2022-08-02 15:24:02 |
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| R11.htm | 17760 | 2022-08-02 15:24:02 |
| R12.htm | 33949 | 2022-08-02 15:24:02 |
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| R21.htm | 216923 | 2022-08-02 15:24:02 |
| R22.htm | 65388 | 2022-08-02 15:24:02 |
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| R28.htm | 18218 | 2022-08-02 15:24:02 |
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| R37.htm | 6151 | 2022-08-02 15:24:02 |
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| R4.htm | 85428 | 2022-08-02 15:24:02 |
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| R5.htm | 44447 | 2022-08-02 15:24:02 |
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| R58.htm | 96516 | 2022-08-02 15:24:02 |
| R59.htm | 17009 | 2022-08-02 15:24:02 |
| R6.htm | 96283 | 2022-08-02 15:24:02 |
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| R8.htm | 11236 | 2022-08-02 15:24:02 |
| R9.htm | 13747 | 2022-08-02 15:24:02 |
| report.css | 2767 | 2022-08-02 15:24:02 |
| Show.js | 1085 | 2022-08-02 15:24:02 |
| vtsi-20211231.xsd | 48856 | 2022-08-02 15:24:02 |
| vtsi-20211231_cal.xml | 73353 | 2022-08-02 15:24:02 |
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