Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-22-026574-index-headers.html | 2022-07-27 07:15:15 | |
| 0001564590-22-026574-index.html | 2022-07-27 07:15:15 | |
| 0001564590-22-026574.txt | 2022-07-27 07:15:15 | |
 0001564590-22-026574-xbrl.zip | 45404 | 2022-07-27 07:15:15 |
| extr-20220727.xsd | 5721 | 2022-07-27 07:15:15 |
| extr-20220727_lab.xml | 18655 | 2022-07-27 07:15:15 |
| extr-20220727_pre.xml | 11148 | 2022-07-27 07:15:15 |
| extr-8k_20220727.htm | 33146 | 2022-07-27 07:15:15 |
| extr-8k_20220727_htm.xml | 3404 | 2022-07-27 07:15:15 |
| extr-ex991_6.htm | 1207256 | 2022-07-27 07:15:15 |
| FilingSummary.xml | 1757 | 2022-07-27 07:15:15 |
| Financial_Report.xlsx | 5688 | 2022-07-27 07:15:15 |
 gfidt0rrjyaf000001.jpg | 28052 | 2022-07-27 07:15:15 |
| MetaLinks.json | 18720 | 2022-07-27 07:15:15 |
| R1.htm | 38533 | 2022-07-27 07:15:15 |
| report.css | 2767 | 2022-07-27 07:15:15 |
| Show.js | 1085 | 2022-07-27 07:15:15 |