Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000898432-23-000225-index-headers.html | 2023-04-28 21:45:41 | |
| 0000898432-23-000225-index.html | 2023-04-28 21:45:41 | |
| 0000898432-23-000225.txt | 2023-04-28 21:45:41 | |
 0000898432-23-000225-xbrl.zip | 251908 | 2023-04-28 21:45:41 |
| FilingSummary.xml | 2151 | 2023-04-28 21:45:41 |
| Financial_Report.xlsx | 72575 | 2023-04-28 21:45:41 |
| MetaLinks.json | 165110 | 2023-04-28 21:45:41 |
 nblogo2.jpg | 6085 | 2023-04-28 21:45:41 |
| nhs-20230407.htm | 1317620 | 2023-04-28 21:45:41 |
| nhs-20230407.xsd | 12488 | 2023-04-28 21:45:41 |
| nhs-20230407_def.xml | 20197 | 2023-04-28 21:45:41 |
| nhs-20230407_htm.xml | 523431 | 2023-04-28 21:45:41 |
| nhs-20230407_lab.xml | 27502 | 2023-04-28 21:45:41 |
| nhs-20230407_pre.xml | 17950 | 2023-04-28 21:45:41 |
| R1.htm | 781186 | 2023-04-28 21:45:41 |
| report.css | 2767 | 2023-04-28 21:45:41 |
| Show.js | 1085 | 2023-04-28 21:45:41 |