Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000865058-22-000003-index-headers.html | 2022-01-26 18:30:59 | |
| 0000865058-22-000003-index.html | 2022-01-26 18:30:59 | |
| 0000865058-22-000003.txt | 2022-01-26 18:30:59 | |
 0000865058-22-000003-xbrl.zip | 80156 | 2022-01-26 18:30:59 |
| a2022nsgvrpressrelease.htm | 21769 | 2022-01-26 18:30:59 |
| exhibit21.htm | 457411 | 2022-01-26 18:30:59 |
| FilingSummary.xml | 1683 | 2022-01-26 18:30:59 |
| Financial_Report.xlsx | 5663 | 2022-01-26 18:30:59 |
| MetaLinks.json | 16785 | 2022-01-26 18:30:59 |
| nsec-20220126.htm | 52411 | 2022-01-26 18:30:59 |
| nsec-20220126.xsd | 1941 | 2022-01-26 18:30:59 |
| nsec-20220126_htm.xml | 11516 | 2022-01-26 18:30:59 |
| nsec-20220126_lab.xml | 23832 | 2022-01-26 18:30:59 |
| nsec-20220126_pre.xml | 12534 | 2022-01-26 18:30:59 |
 nsglogo.jpg | 2297 | 2022-01-26 18:30:59 |
| R1.htm | 38567 | 2022-01-26 18:30:59 |
| report.css | 2767 | 2022-01-26 18:30:59 |
| Show.js | 1085 | 2022-01-26 18:30:59 |