Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-22-038036-index-headers.html | 2022-11-18 16:48:30 | |
| 0001564590-22-038036-index.html | 2022-11-18 16:48:30 | |
| 0001564590-22-038036.txt | 2022-11-18 16:48:30 | |
 0001564590-22-038036-xbrl.zip | 45033 | 2022-11-18 16:48:30 |
| extr-20221117.xsd | 5617 | 2022-11-18 16:48:30 |
| extr-20221117_lab.xml | 20059 | 2022-11-18 16:48:30 |
| extr-20221117_pre.xml | 11957 | 2022-11-18 16:48:30 |
| extr-8k_20221117.htm | 135274 | 2022-11-18 16:48:30 |
| extr-8k_20221117_htm.xml | 3657 | 2022-11-18 16:48:30 |
| extr-ex31_119.htm | 39894 | 2022-11-18 16:48:30 |
| extr-ex32_33.htm | 318234 | 2022-11-18 16:48:30 |
| FilingSummary.xml | 1792 | 2022-11-18 16:48:30 |
| Financial_Report.xlsx | 5735 | 2022-11-18 16:48:30 |
| MetaLinks.json | 19806 | 2022-11-18 16:48:30 |
| R1.htm | 41113 | 2022-11-18 16:48:30 |
| report.css | 2767 | 2022-11-18 16:48:30 |
| Show.js | 1085 | 2022-11-18 16:48:30 |