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|---|---|---|
 0001493152-19-016920-index-headers.html | 2019-11-12 16:31:55 | |
| 0001493152-19-016920-index.html | 2019-11-12 16:31:55 | |
| 0001493152-19-016920.txt | 2019-11-12 16:31:55 | |
 0001493152-19-016920-xbrl.zip | 54741 | 2019-11-12 16:31:55 |
| eng-20190928.xml | 370966 | 2019-11-12 16:31:55 |
| eng-20190928.xsd | 22694 | 2019-11-12 16:31:55 |
| eng-20190928_cal.xml | 46030 | 2019-11-12 16:31:55 |
| eng-20190928_def.xml | 47201 | 2019-11-12 16:31:55 |
| eng-20190928_lab.xml | 166071 | 2019-11-12 16:31:55 |
| eng-20190928_pre.xml | 122409 | 2019-11-12 16:31:55 |
| ex10-1.htm | 7018 | 2019-11-12 16:31:55 |
 ex10-1_001.jpg | 150667 | 2019-11-12 16:31:55 |
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| ex31-1.htm | 17730 | 2019-11-12 16:31:55 |
| ex31-2.htm | 18624 | 2019-11-12 16:31:55 |
| ex32-0.htm | 7481 | 2019-11-12 16:31:55 |
| FilingSummary.xml | 17899 | 2019-11-12 16:31:55 |
| Financial_Report.xlsx | 36218 | 2019-11-12 16:31:55 |
| form10-q.htm | 512608 | 2019-11-12 16:31:55 |
| R1.htm | 31068 | 2019-11-12 16:31:55 |
| R10.htm | 10030 | 2019-11-12 16:31:55 |
| R11.htm | 12848 | 2019-11-12 16:31:55 |
| R12.htm | 51469 | 2019-11-12 16:31:55 |
| R13.htm | 7773 | 2019-11-12 16:31:55 |
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| R2.htm | 32311 | 2019-11-12 16:31:55 |
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| R22.htm | 19930 | 2019-11-12 16:31:55 |
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| R27.htm | 18676 | 2019-11-12 16:31:55 |
| R28.htm | 8646 | 2019-11-12 16:31:55 |
| R29.htm | 51423 | 2019-11-12 16:31:55 |
| R3.htm | 67305 | 2019-11-12 16:31:55 |
| R4.htm | 13253 | 2019-11-12 16:31:55 |
| R5.htm | 66533 | 2019-11-12 16:31:55 |
| R6.htm | 19708 | 2019-11-12 16:31:55 |
| R7.htm | 7793 | 2019-11-12 16:31:55 |
| R8.htm | 6763 | 2019-11-12 16:31:55 |
| R9.htm | 15869 | 2019-11-12 16:31:55 |
| report.css | 2767 | 2019-11-12 16:31:55 |
| Show.js | 1085 | 2019-11-12 16:31:55 |