Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-18-032426-index-headers.html | 2018-05-11 11:46:23 | |
| 0001104659-18-032426-index.html | 2018-05-11 11:46:23 | |
| 0001104659-18-032426.txt | 2018-05-11 11:46:23 | |
 0001104659-18-032426-xbrl.zip | 106538 | 2018-05-11 11:46:23 |
| a18-8654_110q.htm | 693160 | 2018-05-11 11:46:23 |
| a18-8654_1ex31d1.htm | 13568 | 2018-05-11 11:46:23 |
| a18-8654_1ex31d2.htm | 13130 | 2018-05-11 11:46:23 |
| a18-8654_1ex32.htm | 9657 | 2018-05-11 11:46:23 |
| FilingSummary.xml | 19118 | 2018-05-11 11:46:23 |
| Financial_Report.xlsx | 42463 | 2018-05-11 11:46:23 |
| nsys-20180331.xml | 964653 | 2018-05-11 11:46:23 |
| nsys-20180331.xsd | 36054 | 2018-05-11 11:46:23 |
| nsys-20180331_cal.xml | 59827 | 2018-05-11 11:46:23 |
| nsys-20180331_def.xml | 125992 | 2018-05-11 11:46:23 |
| nsys-20180331_lab.xml | 402654 | 2018-05-11 11:46:23 |
| nsys-20180331_pre.xml | 257707 | 2018-05-11 11:46:23 |
| R1.htm | 22219 | 2018-05-11 11:46:23 |
| R10.htm | 8424 | 2018-05-11 11:46:23 |
| R11.htm | 18884 | 2018-05-11 11:46:23 |
| R12.htm | 8952 | 2018-05-11 11:46:23 |
| R13.htm | 7658 | 2018-05-11 11:46:23 |
| R14.htm | 183063 | 2018-05-11 11:46:23 |
| R15.htm | 131313 | 2018-05-11 11:46:23 |
| R16.htm | 96033 | 2018-05-11 11:46:23 |
| R17.htm | 56205 | 2018-05-11 11:46:23 |
| R18.htm | 16995 | 2018-05-11 11:46:23 |
| R19.htm | 81997 | 2018-05-11 11:46:23 |
| R2.htm | 42699 | 2018-05-11 11:46:23 |
| R20.htm | 65362 | 2018-05-11 11:46:23 |
| R21.htm | 31514 | 2018-05-11 11:46:23 |
| R22.htm | 15207 | 2018-05-11 11:46:23 |
| R23.htm | 15007 | 2018-05-11 11:46:23 |
| R24.htm | 54294 | 2018-05-11 11:46:23 |
| R25.htm | 79175 | 2018-05-11 11:46:23 |
| R26.htm | 34807 | 2018-05-11 11:46:23 |
| R27.htm | 16277 | 2018-05-11 11:46:23 |
| R28.htm | 22980 | 2018-05-11 11:46:23 |
| R29.htm | 15600 | 2018-05-11 11:46:23 |
| R3.htm | 91031 | 2018-05-11 11:46:23 |
| R30.htm | 14818 | 2018-05-11 11:46:23 |
| R4.htm | 21360 | 2018-05-11 11:46:23 |
| R5.htm | 86269 | 2018-05-11 11:46:23 |
| R6.htm | 144827 | 2018-05-11 11:46:23 |
| R7.htm | 8873 | 2018-05-11 11:46:23 |
| R8.htm | 98861 | 2018-05-11 11:46:23 |
| R9.htm | 58512 | 2018-05-11 11:46:23 |
| report.css | 2767 | 2018-05-11 11:46:23 |
| Show.js | 1410 | 2018-05-11 11:46:23 |