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| 0001493152-19-004079-index.html | 2019-03-28 12:32:33 | |
| 0001493152-19-004079.txt | 2019-03-28 12:32:33 | |
 0001493152-19-004079-xbrl.zip | 98026 | 2019-03-28 12:32:33 |
| eng-20181229.xml | 479237 | 2019-03-28 12:32:33 |
| eng-20181229.xsd | 41384 | 2019-03-28 12:32:33 |
| eng-20181229_cal.xml | 72093 | 2019-03-28 12:32:33 |
| eng-20181229_def.xml | 97767 | 2019-03-28 12:32:33 |
| eng-20181229_lab.xml | 279467 | 2019-03-28 12:32:33 |
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| ex21-1.htm | 3657 | 2019-03-28 12:32:33 |
| ex23-1.htm | 3965 | 2019-03-28 12:32:33 |
| ex31-1.htm | 12440 | 2019-03-28 12:32:33 |
| ex31-2.htm | 12424 | 2019-03-28 12:32:33 |
| ex32-1.htm | 6449 | 2019-03-28 12:32:33 |
| ex32-2.htm | 6347 | 2019-03-28 12:32:33 |
| FilingSummary.xml | 34571 | 2019-03-28 12:32:33 |
| Financial_Report.xlsx | 65071 | 2019-03-28 12:32:33 |
| form10k.htm | 693508 | 2019-03-28 12:32:33 |
| R1.htm | 37260 | 2019-03-28 12:32:33 |
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| report.css | 2767 | 2019-03-28 12:32:33 |
| Show.js | 1085 | 2019-03-28 12:32:33 |