Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001654954-21-005201-index-headers.html | 2021-05-06 13:09:51 | |
| 0001654954-21-005201-index.html | 2021-05-06 13:09:51 | |
| 0001654954-21-005201.txt | 2021-05-06 13:09:51 | |
 0001654954-21-005201-xbrl.zip | 58439 | 2021-05-06 13:09:51 |
| eng-20210327.xml | 332689 | 2021-05-06 13:09:51 |
| eng-20210327.xsd | 22931 | 2021-05-06 13:09:51 |
| eng-20210327_cal.xml | 51736 | 2021-05-06 13:09:51 |
| eng-20210327_def.xml | 43029 | 2021-05-06 13:09:51 |
| eng-20210327_lab.xml | 175555 | 2021-05-06 13:09:51 |
| eng-20210327_pre.xml | 126713 | 2021-05-06 13:09:51 |
| eng_10q.htm | 746300 | 2021-05-06 13:09:51 |
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| eng_ex312.htm | 14677 | 2021-05-06 13:09:51 |
| eng_ex321.htm | 8419 | 2021-05-06 13:09:51 |
| FilingSummary.xml | 19775 | 2021-05-06 13:09:51 |
| Financial_Report.xlsx | 47241 | 2021-05-06 13:09:51 |
| R1.htm | 32690 | 2021-05-06 13:09:51 |
| R10.htm | 13769 | 2021-05-06 13:09:51 |
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| R2.htm | 44567 | 2021-05-06 13:09:51 |
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| R6.htm | 17901 | 2021-05-06 13:09:51 |
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| R8.htm | 14129 | 2021-05-06 13:09:51 |
| R9.htm | 10726 | 2021-05-06 13:09:51 |
| report.css | 2767 | 2021-05-06 13:09:51 |
| Show.js | 1085 | 2021-05-06 13:09:51 |