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 0001635984-20-000003-index-headers.html | 2020-02-28 13:10:49 | |
| 0001635984-20-000003-index.html | 2020-02-28 13:10:49 | |
| 0001635984-20-000003.txt | 2020-02-28 13:10:49 | |
 0001635984-20-000003-xbrl.zip | 17310 | 2020-02-28 13:10:49 |
| a8-kearningsrelease12x.htm | 47300 | 2020-02-28 13:10:49 |
| a8-kearningsrelease12x_htm.xml | 3777 | 2020-02-28 13:10:49 |
| exhibit991-12x31x2019.htm | 96606 | 2020-02-28 13:10:49 |
| FilingSummary.xml | 1777 | 2020-02-28 13:10:49 |
| Financial_Report.xlsx | 5694 | 2020-02-28 13:10:49 |
| MetaLinks.json | 17011 | 2020-02-28 13:10:49 |
 newsreleaseheadernwlgia16.jpg | 124378 | 2020-02-28 13:10:49 |
| nwli-20200228.xsd | 4615 | 2020-02-28 13:10:49 |
| nwli-20200228_cal.xml | 642 | 2020-02-28 13:10:49 |
| nwli-20200228_def.xml | 1492 | 2020-02-28 13:10:49 |
| nwli-20200228_lab.xml | 23061 | 2020-02-28 13:10:49 |
| nwli-20200228_pre.xml | 12074 | 2020-02-28 13:10:49 |
| R1.htm | 33817 | 2020-02-28 13:10:49 |
| report.css | 2767 | 2020-02-28 13:10:49 |
| Show.js | 1085 | 2020-02-28 13:10:49 |