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| 0001683168-20-001563-index.html | 2020-05-14 16:04:46 | |
| 0001683168-20-001563.txt | 2020-05-14 16:04:46 | |
 0001683168-20-001563-xbrl.zip | 63692 | 2020-05-14 16:04:46 |
| envision_10q-033120.htm | 277120 | 2020-05-14 16:04:46 |
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| R9.htm | 7221 | 2020-05-14 16:04:46 |
| report.css | 2767 | 2020-05-14 16:04:46 |
| Show.js | 1085 | 2020-05-14 16:04:46 |