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|---|---|---|
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| 0001099910-18-000024-index.html | 2018-04-12 16:20:42 | |
| 0001099910-18-000024.txt | 2018-04-12 16:20:42 | |
 0001099910-18-000024-xbrl.zip | 81118 | 2018-04-12 16:20:42 |
| evtn-20171231.xml | 380407 | 2018-04-12 16:20:42 |
| evtn-20171231.xsd | 28714 | 2018-04-12 16:20:42 |
| evtn-20171231_cal.xml | 52039 | 2018-04-12 16:20:42 |
| evtn-20171231_def.xml | 101178 | 2018-04-12 16:20:42 |
| evtn-20171231_lab.xml | 243832 | 2018-04-12 16:20:42 |
| evtn-20171231_pre.xml | 205407 | 2018-04-12 16:20:42 |
| evtn_10k.htm | 502335 | 2018-04-12 16:20:42 |
| ex31-1.htm | 8671 | 2018-04-12 16:20:42 |
| ex31-2.htm | 8145 | 2018-04-12 16:20:42 |
| ex32-1.htm | 4815 | 2018-04-12 16:20:42 |
| FilingSummary.xml | 29672 | 2018-04-12 16:20:42 |
| Financial_Report.xlsx | 55457 | 2018-04-12 16:20:42 |
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| report.css | 2767 | 2018-04-12 16:20:42 |
| Show.js | 1410 | 2018-04-12 16:20:42 |