Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-18-011817-index-headers.html | 2018-05-08 16:13:48 | |
| 0001564590-18-011817-index.html | 2018-05-08 16:13:48 | |
| 0001564590-18-011817.txt | 2018-05-08 16:13:48 | |
| extr-8k_20180331.htm | 24754 | 2018-05-08 16:13:48 |
| extr-ex991_6.htm | 1043521 | 2018-05-08 16:13:48 |