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| 0001493152-19-009830.txt | 2019-06-27 19:48:45 | |
 0001493152-19-009830-xbrl.zip | 59330 | 2019-06-27 19:48:45 |
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| R9.htm | 5975 | 2019-06-27 19:48:45 |
| report.css | 2767 | 2019-06-27 19:48:45 |
| Show.js | 1085 | 2019-06-27 19:48:45 |
| vsym-20190331.xml | 236703 | 2019-06-27 19:48:45 |
| vsym-20190331.xsd | 25894 | 2019-06-27 19:48:45 |
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| vsym-20190331_pre.xml | 148450 | 2019-06-27 19:48:45 |