Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001558370-17-006295-index-headers.html | 2017-08-08 16:40:13 | |
| 0001558370-17-006295-index.html | 2017-08-08 16:40:13 | |
| 0001558370-17-006295.txt | 2017-08-08 16:40:13 | |
 0001558370-17-006295-xbrl.zip | 206617 | 2017-08-08 16:40:13 |
| FilingSummary.xml | 39921 | 2017-08-08 16:40:13 |
| Financial_Report.xlsx | 98307 | 2017-08-08 16:40:13 |
| nen-20170630.xml | 3476940 | 2017-08-08 16:40:13 |
| nen-20170630.xsd | 87755 | 2017-08-08 16:40:13 |
| nen-20170630ex311592d9c.htm | 15082 | 2017-08-08 16:40:13 |
| nen-20170630ex312b62e3b.htm | 15400 | 2017-08-08 16:40:13 |
| nen-20170630ex321dcd42d.htm | 13081 | 2017-08-08 16:40:13 |
| nen-20170630x10q.htm | 3520605 | 2017-08-08 16:40:13 |
| nen-20170630_cal.xml | 68416 | 2017-08-08 16:40:13 |
| nen-20170630_def.xml | 406265 | 2017-08-08 16:40:13 |
| nen-20170630_lab.xml | 580615 | 2017-08-08 16:40:13 |
| nen-20170630_pre.xml | 604964 | 2017-08-08 16:40:13 |
| R1.htm | 23687 | 2017-08-08 16:40:13 |
| R10.htm | 7061 | 2017-08-08 16:40:13 |
| R11.htm | 33423 | 2017-08-08 16:40:13 |
| R12.htm | 5201 | 2017-08-08 16:40:13 |
| R13.htm | 22491 | 2017-08-08 16:40:13 |
| R14.htm | 15007 | 2017-08-08 16:40:13 |
| R15.htm | 7025 | 2017-08-08 16:40:13 |
| R16.htm | 85283 | 2017-08-08 16:40:13 |
| R17.htm | 5958 | 2017-08-08 16:40:13 |
| R18.htm | 40041 | 2017-08-08 16:40:13 |
| R19.htm | 9752 | 2017-08-08 16:40:13 |
| R2.htm | 38958 | 2017-08-08 16:40:13 |
| R20.htm | 12065 | 2017-08-08 16:40:13 |
| R21.htm | 6735 | 2017-08-08 16:40:13 |
| R22.htm | 69317 | 2017-08-08 16:40:13 |
| R23.htm | 84248 | 2017-08-08 16:40:13 |
| R24.htm | 22698 | 2017-08-08 16:40:13 |
| R25.htm | 18306 | 2017-08-08 16:40:13 |
| R26.htm | 13034 | 2017-08-08 16:40:13 |
| R27.htm | 82683 | 2017-08-08 16:40:13 |
| R28.htm | 29448 | 2017-08-08 16:40:13 |
| R29.htm | 1909956 | 2017-08-08 16:40:13 |
| R3.htm | 5325 | 2017-08-08 16:40:13 |
| R30.htm | 38257 | 2017-08-08 16:40:13 |
| R31.htm | 71363 | 2017-08-08 16:40:13 |
| R32.htm | 93179 | 2017-08-08 16:40:13 |
| R33.htm | 66713 | 2017-08-08 16:40:13 |
| R34.htm | 14281 | 2017-08-08 16:40:13 |
| R35.htm | 42891 | 2017-08-08 16:40:13 |
| R36.htm | 33314 | 2017-08-08 16:40:13 |
| R37.htm | 80059 | 2017-08-08 16:40:13 |
| R38.htm | 7426 | 2017-08-08 16:40:13 |
| R39.htm | 43825 | 2017-08-08 16:40:13 |
| R4.htm | 50011 | 2017-08-08 16:40:13 |
| R40.htm | 43462 | 2017-08-08 16:40:13 |
| R41.htm | 10559 | 2017-08-08 16:40:13 |
| R42.htm | 25286 | 2017-08-08 16:40:13 |
| R43.htm | 7789 | 2017-08-08 16:40:13 |
| R44.htm | 29755 | 2017-08-08 16:40:13 |
| R45.htm | 7613 | 2017-08-08 16:40:13 |
| R46.htm | 6759 | 2017-08-08 16:40:13 |
| R47.htm | 9444 | 2017-08-08 16:40:13 |
| R48.htm | 15829 | 2017-08-08 16:40:13 |
| R49.htm | 18848 | 2017-08-08 16:40:13 |
| R5.htm | 29310 | 2017-08-08 16:40:13 |
| R50.htm | 25719 | 2017-08-08 16:40:13 |
| R51.htm | 18632 | 2017-08-08 16:40:13 |
| R52.htm | 48422 | 2017-08-08 16:40:13 |
| R53.htm | 37772 | 2017-08-08 16:40:13 |
| R54.htm | 45643 | 2017-08-08 16:40:13 |
| R55.htm | 46426 | 2017-08-08 16:40:13 |
| R56.htm | 35463 | 2017-08-08 16:40:13 |
| R57.htm | 273797 | 2017-08-08 16:40:13 |
| R58.htm | 240065 | 2017-08-08 16:40:13 |
| R59.htm | 47752 | 2017-08-08 16:40:13 |
| R6.htm | 73760 | 2017-08-08 16:40:13 |
| R60.htm | 308184 | 2017-08-08 16:40:13 |
| R61.htm | 49324 | 2017-08-08 16:40:13 |
| R62.htm | 19655 | 2017-08-08 16:40:13 |
| R7.htm | 31382 | 2017-08-08 16:40:13 |
| R8.htm | 86849 | 2017-08-08 16:40:13 |
| R9.htm | 11742 | 2017-08-08 16:40:13 |
| report.css | 2767 | 2017-08-08 16:40:13 |
| Show.js | 1410 | 2017-08-08 16:40:13 |