Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001403853-20-000065-index-headers.html | 2020-11-10 16:09:56 | |
| 0001403853-20-000065-index.html | 2020-11-10 16:09:56 | |
| 0001403853-20-000065.txt | 2020-11-10 16:09:56 | |
 0001403853-20-000065-xbrl.zip | 277052 | 2020-11-10 16:09:56 |
| FilingSummary.xml | 34752 | 2020-11-10 16:09:56 |
| Financial_Report.xlsx | 92024 | 2020-11-10 16:09:56 |
| MetaLinks.json | 544077 | 2020-11-10 16:09:56 |
| nes-20200930.htm | 1814397 | 2020-11-10 16:09:56 |
| nes-20200930.xsd | 42452 | 2020-11-10 16:09:56 |
| nes-20200930_cal.xml | 100301 | 2020-11-10 16:09:56 |
| nes-20200930_def.xml | 159340 | 2020-11-10 16:09:56 |
 nes-20200930_g1.jpg | 7608 | 2020-11-10 16:09:56 |
| nes-20200930_htm.xml | 1728413 | 2020-11-10 16:09:56 |
| nes-20200930_lab.xml | 524335 | 2020-11-10 16:09:56 |
| nes-20200930_pre.xml | 343816 | 2020-11-10 16:09:56 |
| nes20200930ex311.htm | 10817 | 2020-11-10 16:09:56 |
| nes20200930ex312.htm | 10782 | 2020-11-10 16:09:56 |
| nes20200930ex321.htm | 9874 | 2020-11-10 16:09:56 |
| R1.htm | 56038 | 2020-11-10 16:09:56 |
| R10.htm | 162512 | 2020-11-10 16:09:56 |
| R11.htm | 7156 | 2020-11-10 16:09:56 |
| R12.htm | 33046 | 2020-11-10 16:09:56 |
| R13.htm | 25410 | 2020-11-10 16:09:56 |
| R14.htm | 10040 | 2020-11-10 16:09:56 |
| R15.htm | 16801 | 2020-11-10 16:09:56 |
| R16.htm | 47882 | 2020-11-10 16:09:56 |
| R17.htm | 14145 | 2020-11-10 16:09:56 |
| R18.htm | 20297 | 2020-11-10 16:09:56 |
| R19.htm | 25661 | 2020-11-10 16:09:56 |
| R2.htm | 91999 | 2020-11-10 16:09:56 |
| R20.htm | 11018 | 2020-11-10 16:09:56 |
| R21.htm | 8240 | 2020-11-10 16:09:56 |
| R22.htm | 6288 | 2020-11-10 16:09:56 |
| R23.htm | 93597 | 2020-11-10 16:09:56 |
| R24.htm | 32867 | 2020-11-10 16:09:56 |
| R25.htm | 98623 | 2020-11-10 16:09:56 |
| R26.htm | 104343 | 2020-11-10 16:09:56 |
| R27.htm | 32102 | 2020-11-10 16:09:56 |
| R28.htm | 24961 | 2020-11-10 16:09:56 |
| R29.htm | 16951 | 2020-11-10 16:09:56 |
| R3.htm | 26683 | 2020-11-10 16:09:56 |
| R30.htm | 36039 | 2020-11-10 16:09:56 |
| R31.htm | 11805 | 2020-11-10 16:09:56 |
| R32.htm | 16513 | 2020-11-10 16:09:56 |
| R33.htm | 24122 | 2020-11-10 16:09:56 |
| R34.htm | 89994 | 2020-11-10 16:09:56 |
| R35.htm | 17782 | 2020-11-10 16:09:56 |
| R36.htm | 7502 | 2020-11-10 16:09:56 |
| R37.htm | 52528 | 2020-11-10 16:09:56 |
| R38.htm | 10083 | 2020-11-10 16:09:56 |
| R39.htm | 20089 | 2020-11-10 16:09:56 |
| R4.htm | 76942 | 2020-11-10 16:09:56 |
| R40.htm | 30975 | 2020-11-10 16:09:56 |
| R41.htm | 13636 | 2020-11-10 16:09:56 |
| R42.htm | 13920 | 2020-11-10 16:09:56 |
| R43.htm | 55958 | 2020-11-10 16:09:56 |
| R44.htm | 31920 | 2020-11-10 16:09:56 |
| R45.htm | 4795 | 2020-11-10 16:09:56 |
| R46.htm | 37798 | 2020-11-10 16:09:56 |
| R47.htm | 22447 | 2020-11-10 16:09:56 |
| R48.htm | 17487 | 2020-11-10 16:09:56 |
| R49.htm | 23830 | 2020-11-10 16:09:56 |
| R5.htm | 73287 | 2020-11-10 16:09:56 |
| R50.htm | 42149 | 2020-11-10 16:09:56 |
| R51.htm | 78787 | 2020-11-10 16:09:56 |
| R52.htm | 15898 | 2020-11-10 16:09:56 |
| R53.htm | 8962 | 2020-11-10 16:09:56 |
| R54.htm | 13271 | 2020-11-10 16:09:56 |
| R55.htm | 7608 | 2020-11-10 16:09:56 |
| R56.htm | 14353 | 2020-11-10 16:09:56 |
| R57.htm | 11903 | 2020-11-10 16:09:56 |
| R58.htm | 15884 | 2020-11-10 16:09:56 |
| R59.htm | 3800 | 2020-11-10 16:09:56 |
| R6.htm | 92209 | 2020-11-10 16:09:56 |
| R60.htm | 55558 | 2020-11-10 16:09:56 |
| R7.htm | 16911 | 2020-11-10 16:09:56 |
| R8.htm | 10160 | 2020-11-10 16:09:56 |
| R9.htm | 106792 | 2020-11-10 16:09:56 |
| R9999.htm | 12009 | 2020-11-10 16:09:56 |
| report.css | 2767 | 2020-11-10 16:09:56 |
| Show.js | 1085 | 2020-11-10 16:09:56 |