Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001213900-24-037095-index-headers.html | 2024-04-29 15:03:32 | |
| 0001213900-24-037095-index.html | 2024-04-29 15:03:32 | |
| 0001213900-24-037095.txt | 2024-04-29 15:03:32 | |
 0001213900-24-037095-xbrl.zip | 87124 | 2024-04-29 15:03:32 |
| ea0204797-10ka1_national.htm | 1125329 | 2024-04-29 15:03:32 |
| ea0204797-10ka1_national_htm.xml | 10149 | 2024-04-29 15:03:32 |
| ea020479701ex31c_national.htm | 5354 | 2024-04-29 15:03:32 |
| ea020479701ex31d_national.htm | 3282 | 2024-04-29 15:03:32 |
| FilingSummary.xml | 2070 | 2024-04-29 15:03:32 |
| Financial_Report.xlsx | 8430 | 2024-04-29 15:03:32 |
| MetaLinks.json | 33158 | 2024-04-29 15:03:32 |
| nwli-20231231.xsd | 3293 | 2024-04-29 15:03:32 |
| nwli-20231231_def.xml | 18986 | 2024-04-29 15:03:32 |
| nwli-20231231_lab.xml | 37897 | 2024-04-29 15:03:32 |
| nwli-20231231_pre.xml | 19757 | 2024-04-29 15:03:32 |
| R1.htm | 79779 | 2024-04-29 15:03:32 |
| report.css | 2767 | 2024-04-29 15:03:32 |
| Show.js | 1085 | 2024-04-29 15:03:32 |