Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000865058-21-000028-index-headers.html | 2021-05-14 16:30:38 | |
| 0000865058-21-000028-index.html | 2021-05-14 16:30:38 | |
| 0000865058-21-000028.txt | 2021-05-14 16:30:38 | |
 0000865058-21-000028-xbrl.zip | 19675 | 2021-05-14 16:30:38 |
| a2021financialresultsrelea.htm | 76319 | 2021-05-14 16:30:38 |
| FilingSummary.xml | 1738 | 2021-05-14 16:30:38 |
| Financial_Report.xlsx | 5662 | 2021-05-14 16:30:38 |
| MetaLinks.json | 17525 | 2021-05-14 16:30:38 |
| nsec-20210514.htm | 35554 | 2021-05-14 16:30:38 |
| nsec-20210514.xsd | 2462 | 2021-05-14 16:30:38 |
| nsec-20210514_cal.xml | 736 | 2021-05-14 16:30:38 |
| nsec-20210514_def.xml | 1669 | 2021-05-14 16:30:38 |
| nsec-20210514_htm.xml | 11424 | 2021-05-14 16:30:38 |
| nsec-20210514_lab.xml | 23970 | 2021-05-14 16:30:38 |
| nsec-20210514_pre.xml | 12672 | 2021-05-14 16:30:38 |
 nsglogo1a.jpg | 2297 | 2021-05-14 16:30:38 |
| R1.htm | 38606 | 2021-05-14 16:30:38 |
| report.css | 2767 | 2021-05-14 16:30:38 |
| Show.js | 1085 | 2021-05-14 16:30:38 |