Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001683168-20-001022-index-headers.html | 2020-03-30 16:16:17 | |
| 0001683168-20-001022-index.html | 2020-03-30 16:16:17 | |
| 0001683168-20-001022.txt | 2020-03-30 16:16:17 | |
 0001683168-20-001022-xbrl.zip | 135845 | 2020-03-30 16:16:17 |
| envision_10k-123119.htm | 819884 | 2020-03-30 16:16:17 |
| envision_10k-ex3101.htm | 11815 | 2020-03-30 16:16:17 |
| envision_10k-ex3102.htm | 11862 | 2020-03-30 16:16:17 |
| envision_10k-ex3201.htm | 4293 | 2020-03-30 16:16:17 |
| envision_10k-ex3202.htm | 4355 | 2020-03-30 16:16:17 |
| envision_ex0401.htm | 7426 | 2020-03-30 16:16:17 |
| evsi-20191231.xml | 684707 | 2020-03-30 16:16:17 |
| evsi-20191231.xsd | 43047 | 2020-03-30 16:16:17 |
| evsi-20191231_cal.xml | 76251 | 2020-03-30 16:16:17 |
| evsi-20191231_def.xml | 243242 | 2020-03-30 16:16:17 |
| evsi-20191231_lab.xml | 381255 | 2020-03-30 16:16:17 |
| evsi-20191231_pre.xml | 360299 | 2020-03-30 16:16:17 |
| FilingSummary.xml | 38854 | 2020-03-30 16:16:17 |
| Financial_Report.xlsx | 93400 | 2020-03-30 16:16:17 |
 image_001.jpg | 13274 | 2020-03-30 16:16:17 |
| R1.htm | 38883 | 2020-03-30 16:16:17 |
| R10.htm | 6313 | 2020-03-30 16:16:17 |
| R11.htm | 8394 | 2020-03-30 16:16:17 |
| R12.htm | 8825 | 2020-03-30 16:16:17 |
| R13.htm | 11980 | 2020-03-30 16:16:17 |
| R14.htm | 9889 | 2020-03-30 16:16:17 |
| R15.htm | 13787 | 2020-03-30 16:16:17 |
| R16.htm | 8352 | 2020-03-30 16:16:17 |
| R17.htm | 26804 | 2020-03-30 16:16:17 |
| R18.htm | 9091 | 2020-03-30 16:16:17 |
| R19.htm | 5187 | 2020-03-30 16:16:17 |
| R2.htm | 90148 | 2020-03-30 16:16:17 |
| R20.htm | 9688 | 2020-03-30 16:16:17 |
| R21.htm | 26832 | 2020-03-30 16:16:17 |
| R22.htm | 55523 | 2020-03-30 16:16:17 |
| R23.htm | 9634 | 2020-03-30 16:16:17 |
| R24.htm | 22788 | 2020-03-30 16:16:17 |
| R25.htm | 18760 | 2020-03-30 16:16:17 |
| R26.htm | 6385 | 2020-03-30 16:16:17 |
| R27.htm | 100250 | 2020-03-30 16:16:17 |
| R28.htm | 7766 | 2020-03-30 16:16:17 |
| R29.htm | 9246 | 2020-03-30 16:16:17 |
| R3.htm | 24869 | 2020-03-30 16:16:17 |
| R30.htm | 10543 | 2020-03-30 16:16:17 |
| R31.htm | 9065 | 2020-03-30 16:16:17 |
| R32.htm | 12881 | 2020-03-30 16:16:17 |
| R33.htm | 8858 | 2020-03-30 16:16:17 |
| R34.htm | 52747 | 2020-03-30 16:16:17 |
| R35.htm | 8035 | 2020-03-30 16:16:17 |
| R36.htm | 20687 | 2020-03-30 16:16:17 |
| R37.htm | 48219 | 2020-03-30 16:16:17 |
| R38.htm | 13252 | 2020-03-30 16:16:17 |
| R39.htm | 6909 | 2020-03-30 16:16:17 |
| R4.htm | 37110 | 2020-03-30 16:16:17 |
| R40.htm | 13411 | 2020-03-30 16:16:17 |
| R41.htm | 13468 | 2020-03-30 16:16:17 |
| R42.htm | 19202 | 2020-03-30 16:16:17 |
| R43.htm | 6804 | 2020-03-30 16:16:17 |
| R44.htm | 21783 | 2020-03-30 16:16:17 |
| R45.htm | 50833 | 2020-03-30 16:16:17 |
| R46.htm | 15900 | 2020-03-30 16:16:17 |
| R47.htm | 20408 | 2020-03-30 16:16:17 |
| R48.htm | 27032 | 2020-03-30 16:16:17 |
| R49.htm | 41796 | 2020-03-30 16:16:17 |
| R5.htm | 4312 | 2020-03-30 16:16:17 |
| R50.htm | 8974 | 2020-03-30 16:16:17 |
| R51.htm | 12063 | 2020-03-30 16:16:17 |
| R52.htm | 21890 | 2020-03-30 16:16:17 |
| R53.htm | 108183 | 2020-03-30 16:16:17 |
| R54.htm | 15585 | 2020-03-30 16:16:17 |
| R55.htm | 32562 | 2020-03-30 16:16:17 |
| R56.htm | 37894 | 2020-03-30 16:16:17 |
| R57.htm | 30161 | 2020-03-30 16:16:17 |
| R58.htm | 47455 | 2020-03-30 16:16:17 |
| R59.htm | 8682 | 2020-03-30 16:16:17 |
| R6.htm | 44853 | 2020-03-30 16:16:17 |
| R60.htm | 8963 | 2020-03-30 16:16:17 |
| R61.htm | 20679 | 2020-03-30 16:16:17 |
| R62.htm | 36977 | 2020-03-30 16:16:17 |
| R63.htm | 19120 | 2020-03-30 16:16:17 |
| R64.htm | 78000 | 2020-03-30 16:16:17 |
| R7.htm | 101979 | 2020-03-30 16:16:17 |
| R8.htm | 47034 | 2020-03-30 16:16:17 |
| R9.htm | 7144 | 2020-03-30 16:16:17 |
| report.css | 2767 | 2020-03-30 16:16:17 |
| Show.js | 1085 | 2020-03-30 16:16:17 |