Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001564590-17-017659-index.html | 2017-08-14 16:25:22 | |
| 0001564590-17-017659.txt | 2017-08-14 16:25:22 | |
| extr-8k_20170630.htm | 24008 | 2017-08-14 16:25:22 |
| extr-ex991_6.htm | 1033338 | 2017-08-14 16:25:22 |