Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-23-014568-index-headers.html | 2023-05-01 16:10:36 | |
| 0001628280-23-014568-index.html | 2023-05-01 16:10:36 | |
| 0001628280-23-014568.txt | 2023-05-01 16:10:36 | |
 0001628280-23-014568-xbrl.zip | 68840 | 2023-05-01 16:10:36 |
| ex991-q12023erss.htm | 1271655 | 2023-05-01 16:10:36 |
| FilingSummary.xml | 2122 | 2023-05-01 16:10:36 |
| Financial_Report.xlsx | 5918 | 2023-05-01 16:10:36 |
 image0a93a.jpg | 9612 | 2023-05-01 16:10:36 |
| MetaLinks.json | 24093 | 2023-05-01 16:10:36 |
| nsa-20230501.htm | 40193 | 2023-05-01 16:10:36 |
| nsa-20230501.xsd | 2561 | 2023-05-01 16:10:36 |
| nsa-20230501_def.xml | 17493 | 2023-05-01 16:10:36 |
| nsa-20230501_htm.xml | 15355 | 2023-05-01 16:10:36 |
| nsa-20230501_lab.xml | 33079 | 2023-05-01 16:10:36 |
| nsa-20230501_pre.xml | 17772 | 2023-05-01 16:10:36 |
 nsa-q12023ar_editablecovera.jpg | 394279 | 2023-05-01 16:10:36 |
 nsamap_q12023a.jpg | 56511 | 2023-05-01 16:10:36 |
| R1.htm | 43858 | 2023-05-01 16:10:36 |
| report.css | 2767 | 2023-05-01 16:10:36 |
| Show.js | 1085 | 2023-05-01 16:10:36 |