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|---|---|---|
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| 0001099910-21-000063-index.html | 2021-05-17 17:02:25 | |
| 0001099910-21-000063.txt | 2021-05-17 17:02:25 | |
 0001099910-21-000063-xbrl.zip | 67787 | 2021-05-17 17:02:25 |
| evtn-20210331.xml | 246810 | 2021-05-17 17:02:25 |
| evtn-20210331.xsd | 26624 | 2021-05-17 17:02:25 |
| evtn-20210331_cal.xml | 39751 | 2021-05-17 17:02:25 |
| evtn-20210331_def.xml | 90348 | 2021-05-17 17:02:25 |
| evtn-20210331_lab.xml | 222128 | 2021-05-17 17:02:25 |
| evtn-20210331_pre.xml | 173900 | 2021-05-17 17:02:25 |
| evtn_10q.htm | 295730 | 2021-05-17 17:02:25 |
| ex31-1.htm | 8720 | 2021-05-17 17:02:25 |
| ex31-2.htm | 8030 | 2021-05-17 17:02:25 |
| ex32-1.htm | 3854 | 2021-05-17 17:02:25 |
| FilingSummary.xml | 23218 | 2021-05-17 17:02:25 |
| Financial_Report.xlsx | 54677 | 2021-05-17 17:02:25 |
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| R9.htm | 29174 | 2021-05-17 17:02:25 |
| report.css | 2767 | 2021-05-17 17:02:25 |
| Show.js | 1085 | 2021-05-17 17:02:25 |