Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001654954-23-005379-index-headers.html | 2023-04-28 12:32:44 | |
| 0001654954-23-005379-index.html | 2023-04-28 12:32:44 | |
| 0001654954-23-005379.txt | 2023-04-28 12:32:44 | |
 0001654954-23-005379-xbrl.zip | 36311 | 2023-04-28 12:32:44 |
| eng-20221231.xsd | 5727 | 2023-04-28 12:32:44 |
| eng-20221231_cal.xml | 905 | 2023-04-28 12:32:44 |
| eng-20221231_def.xml | 2106 | 2023-04-28 12:32:44 |
| eng-20221231_lab.xml | 22113 | 2023-04-28 12:32:44 |
| eng-20221231_pre.xml | 14296 | 2023-04-28 12:32:44 |
| eng_10ka.htm | 335709 | 2023-04-28 12:32:44 |
| eng_10ka_htm.xml | 7378 | 2023-04-28 12:32:44 |
| eng_ex313.htm | 3354 | 2023-04-28 12:32:44 |
| eng_ex314.htm | 3247 | 2023-04-28 12:32:44 |
| FilingSummary.xml | 2473 | 2023-04-28 12:32:44 |
| Financial_Report.xlsx | 7237 | 2023-04-28 12:32:44 |
| MetaLinks.json | 25980 | 2023-04-28 12:32:44 |
| R1.htm | 69363 | 2023-04-28 12:32:44 |
| report.css | 2767 | 2023-04-28 12:32:44 |
| Show.js | 1085 | 2023-04-28 12:32:44 |