Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001099910-21-000091-index-headers.html | 2021-08-09 16:56:37 | |
| 0001099910-21-000091-index.html | 2021-08-09 16:56:37 | |
| 0001099910-21-000091.txt | 2021-08-09 16:56:37 | |
 0001099910-21-000091-xbrl.zip | 111374 | 2021-08-09 16:56:37 |
| evtn-20210630.xsd | 30512 | 2021-08-09 16:56:37 |
| evtn-20210630_cal.xml | 39523 | 2021-08-09 16:56:37 |
| evtn-20210630_def.xml | 110672 | 2021-08-09 16:56:37 |
| evtn-20210630_lab.xml | 264261 | 2021-08-09 16:56:37 |
| evtn-20210630_pre.xml | 199111 | 2021-08-09 16:56:37 |
| evtn_10q.htm | 522087 | 2021-08-09 16:56:37 |
| evtn_10q_htm.xml | 335966 | 2021-08-09 16:56:37 |
| ex10-1.htm | 350 | 2021-08-09 16:56:37 |
| ex31-1.htm | 8036 | 2021-08-09 16:56:37 |
| ex31-2.htm | 7798 | 2021-08-09 16:56:37 |
| ex32-1.htm | 3869 | 2021-08-09 16:56:37 |
| FilingSummary.xml | 23018 | 2021-08-09 16:56:37 |
| Financial_Report.xlsx | 55758 | 2021-08-09 16:56:37 |
| MetaLinks.json | 411872 | 2021-08-09 16:56:37 |
 purchaseorder.jpg | 117399 | 2021-08-09 16:56:37 |
| R1.htm | 47244 | 2021-08-09 16:56:37 |
| R10.htm | 14474 | 2021-08-09 16:56:37 |
| R11.htm | 13358 | 2021-08-09 16:56:37 |
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| R2.htm | 109812 | 2021-08-09 16:56:37 |
| R20.htm | 10972 | 2021-08-09 16:56:37 |
| R21.htm | 7716 | 2021-08-09 16:56:37 |
| R22.htm | 19016 | 2021-08-09 16:56:37 |
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| R24.htm | 7883 | 2021-08-09 16:56:37 |
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| R26.htm | 25174 | 2021-08-09 16:56:37 |
| R27.htm | 42594 | 2021-08-09 16:56:37 |
| R28.htm | 17294 | 2021-08-09 16:56:37 |
| R29.htm | 10997 | 2021-08-09 16:56:37 |
| R3.htm | 10770 | 2021-08-09 16:56:37 |
| R30.htm | 8958 | 2021-08-09 16:56:37 |
| R31.htm | 23771 | 2021-08-09 16:56:37 |
| R32.htm | 42147 | 2021-08-09 16:56:37 |
| R33.htm | 44146 | 2021-08-09 16:56:37 |
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| R36.htm | 21255 | 2021-08-09 16:56:37 |
| R37.htm | 18878 | 2021-08-09 16:56:37 |
| R38.htm | 7094 | 2021-08-09 16:56:37 |
| R4.htm | 74291 | 2021-08-09 16:56:37 |
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| R7.htm | 7737 | 2021-08-09 16:56:37 |
| R8.htm | 8745 | 2021-08-09 16:56:37 |
| R9.htm | 36037 | 2021-08-09 16:56:37 |
| report.css | 2767 | 2021-08-09 16:56:37 |
| Show.js | 1085 | 2021-08-09 16:56:37 |