Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000865058-22-000019-index-headers.html | 2022-04-28 17:02:30 | |
| 0000865058-22-000019-index.html | 2022-04-28 17:02:30 | |
| 0000865058-22-000019.txt | 2022-04-28 17:02:30 | |
 0000865058-22-000019-xbrl.zip | 12127 | 2022-04-28 17:02:30 |
| a2022aprildividendrelease.htm | 5565 | 2022-04-28 17:02:30 |
| FilingSummary.xml | 1665 | 2022-04-28 17:02:30 |
| Financial_Report.xlsx | 5661 | 2022-04-28 17:02:30 |
| MetaLinks.json | 16784 | 2022-04-28 17:02:30 |
| nsec-20220428.htm | 34587 | 2022-04-28 17:02:30 |
| nsec-20220428.xsd | 1941 | 2022-04-28 17:02:30 |
| nsec-20220428_htm.xml | 11517 | 2022-04-28 17:02:30 |
| nsec-20220428_lab.xml | 23832 | 2022-04-28 17:02:30 |
| nsec-20220428_pre.xml | 12534 | 2022-04-28 17:02:30 |
 nsglogoa.jpg | 2297 | 2022-04-28 17:02:30 |
| R1.htm | 38700 | 2022-04-28 17:02:30 |
| report.css | 2767 | 2022-04-28 17:02:30 |
| Show.js | 1085 | 2022-04-28 17:02:30 |