Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-17-008722-index-headers.html | 2017-08-09 11:08:51 | |
| 0001493152-17-008722-index.html | 2017-08-09 11:08:51 | |
| 0001493152-17-008722.txt | 2017-08-09 11:08:51 | |
 0001493152-17-008722-xbrl.zip | 42292 | 2017-08-09 11:08:51 |
| eng-20170701.xml | 277885 | 2017-08-09 11:08:51 |
| eng-20170701.xsd | 16393 | 2017-08-09 11:08:51 |
| eng-20170701_cal.xml | 39109 | 2017-08-09 11:08:51 |
| eng-20170701_def.xml | 29440 | 2017-08-09 11:08:51 |
| eng-20170701_lab.xml | 119496 | 2017-08-09 11:08:51 |
| eng-20170701_pre.xml | 88314 | 2017-08-09 11:08:51 |
| ex31-1.htm | 11728 | 2017-08-09 11:08:51 |
| ex31-2.htm | 10409 | 2017-08-09 11:08:51 |
| ex32.htm | 4899 | 2017-08-09 11:08:51 |
| FilingSummary.xml | 15415 | 2017-08-09 11:08:51 |
| Financial_Report.xlsx | 29936 | 2017-08-09 11:08:51 |
| form10-q.htm | 615506 | 2017-08-09 11:08:51 |
| R1.htm | 21761 | 2017-08-09 11:08:51 |
| R10.htm | 63807 | 2017-08-09 11:08:51 |
| R11.htm | 8044 | 2017-08-09 11:08:51 |
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| R2.htm | 31072 | 2017-08-09 11:08:51 |
| R20.htm | 12469 | 2017-08-09 11:08:51 |
| R21.htm | 13579 | 2017-08-09 11:08:51 |
| R22.htm | 20591 | 2017-08-09 11:08:51 |
| R23.htm | 34018 | 2017-08-09 11:08:51 |
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| R25.htm | 11120 | 2017-08-09 11:08:51 |
| R3.htm | 65085 | 2017-08-09 11:08:51 |
| R4.htm | 13093 | 2017-08-09 11:08:51 |
| R5.htm | 65844 | 2017-08-09 11:08:51 |
| R6.htm | 16502 | 2017-08-09 11:08:51 |
| R7.htm | 9859 | 2017-08-09 11:08:51 |
| R8.htm | 16464 | 2017-08-09 11:08:51 |
| R9.htm | 6053 | 2017-08-09 11:08:51 |
| report.css | 2767 | 2017-08-09 11:08:51 |
| Show.js | 1410 | 2017-08-09 11:08:51 |