Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001688476-20-000057-index-headers.html | 2020-06-08 16:42:00 | |
| 0001688476-20-000057-index.html | 2020-06-08 16:42:00 | |
| 0001688476-20-000057.txt | 2020-06-08 16:42:00 | |
 0001688476-20-000057-xbrl.zip | 14943 | 2020-06-08 16:42:00 |
| exhibit991nexvirtualme.htm | 7983 | 2020-06-08 16:42:00 |
| FilingSummary.xml | 1731 | 2020-06-08 16:42:00 |
| Financial_Report.xlsx | 5804 | 2020-06-08 16:42:00 |
| frac-20200608.htm | 60563 | 2020-06-08 16:42:00 |
| frac-20200608.xsd | 2565 | 2020-06-08 16:42:00 |
| frac-20200608_cal.xml | 714 | 2020-06-08 16:42:00 |
| frac-20200608_def.xml | 1651 | 2020-06-08 16:42:00 |
| frac-20200608_htm.xml | 11069 | 2020-06-08 16:42:00 |
| frac-20200608_lab.xml | 24275 | 2020-06-08 16:42:00 |
| frac-20200608_pre.xml | 12650 | 2020-06-08 16:42:00 |
| MetaLinks.json | 17920 | 2020-06-08 16:42:00 |
 nextierlogoa071.jpg | 8695 | 2020-06-08 16:42:00 |
| R1.htm | 39637 | 2020-06-08 16:42:00 |
| report.css | 2767 | 2020-06-08 16:42:00 |
| Show.js | 1085 | 2020-06-08 16:42:00 |