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|---|---|---|
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| 0001099910-20-000106-index.html | 2020-11-12 16:15:23 | |
| 0001099910-20-000106.txt | 2020-11-12 16:15:23 | |
 0001099910-20-000106-xbrl.zip | 76814 | 2020-11-12 16:15:23 |
| evtn-20200930.xml | 373473 | 2020-11-12 16:15:23 |
| evtn-20200930.xsd | 28149 | 2020-11-12 16:15:23 |
| evtn-20200930_cal.xml | 39579 | 2020-11-12 16:15:23 |
| evtn-20200930_def.xml | 108472 | 2020-11-12 16:15:23 |
| evtn-20200930_lab.xml | 245897 | 2020-11-12 16:15:23 |
| evtn-20200930_pre.xml | 187290 | 2020-11-12 16:15:23 |
| evtn_10q.htm | 550490 | 2020-11-12 16:15:23 |
| ex31-1.htm | 11450 | 2020-11-12 16:15:23 |
| ex31-2.htm | 11317 | 2020-11-12 16:15:23 |
| ex32-1.htm | 5637 | 2020-11-12 16:15:23 |
| FilingSummary.xml | 20514 | 2020-11-12 16:15:23 |
| Financial_Report.xlsx | 55586 | 2020-11-12 16:15:23 |
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| R8.htm | 11256 | 2020-11-12 16:15:23 |
| R9.htm | 35964 | 2020-11-12 16:15:23 |
| report.css | 2767 | 2020-11-12 16:15:23 |
| Show.js | 1085 | 2020-11-12 16:15:23 |