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 0001099910-20-000081-index-headers.html | 2020-08-14 16:04:17 | |
| 0001099910-20-000081-index.html | 2020-08-14 16:04:17 | |
| 0001099910-20-000081.txt | 2020-08-14 16:04:17 | |
 0001099910-20-000081-xbrl.zip | 77603 | 2020-08-14 16:04:17 |
 carloss1.jpg | 6222 | 2020-08-14 16:04:17 |
| evtn-20200630.xml | 366229 | 2020-08-14 16:04:17 |
| evtn-20200630.xsd | 29561 | 2020-08-14 16:04:17 |
| evtn-20200630_cal.xml | 40465 | 2020-08-14 16:04:17 |
| evtn-20200630_def.xml | 118946 | 2020-08-14 16:04:17 |
| evtn-20200630_lab.xml | 251526 | 2020-08-14 16:04:17 |
| evtn-20200630_pre.xml | 198325 | 2020-08-14 16:04:17 |
| evtn_10q.htm | 415011 | 2020-08-14 16:04:17 |
| ex10-2.htm | 170083 | 2020-08-14 16:04:17 |
| ex31-1.htm | 10055 | 2020-08-14 16:04:17 |
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| ex32-1.htm | 4434 | 2020-08-14 16:04:17 |
| FilingSummary.xml | 22625 | 2020-08-14 16:04:17 |
| Financial_Report.xlsx | 58084 | 2020-08-14 16:04:17 |
 jrsign_001.jpg | 2792 | 2020-08-14 16:04:17 |
| R1.htm | 32670 | 2020-08-14 16:04:17 |
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| R32.htm | 8991 | 2020-08-14 16:04:17 |
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 recycle1.jpg | 2625 | 2020-08-14 16:04:17 |
 recycle2.jpg | 2625 | 2020-08-14 16:04:17 |
| report.css | 2767 | 2020-08-14 16:04:17 |
 sba.jpg | 10164 | 2020-08-14 16:04:17 |
| Show.js | 1085 | 2020-08-14 16:04:17 |