Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000912061-20-000025-index-headers.html | 2020-05-06 09:03:13 | |
| 0000912061-20-000025-index.html | 2020-05-06 09:03:13 | |
| 0000912061-20-000025.txt | 2020-05-06 09:03:13 | |
 0000912061-20-000025-xbrl.zip | 21051 | 2020-05-06 09:03:13 |
| FilingSummary.xml | 1750 | 2020-05-06 09:03:13 |
| Financial_Report.xlsx | 5821 | 2020-05-06 09:03:13 |
| MetaLinks.json | 18904 | 2020-05-06 09:03:13 |
| nhtc-20200506.htm | 42167 | 2020-05-06 09:03:13 |
| nhtc-20200506.xsd | 2622 | 2020-05-06 09:03:13 |
| nhtc-20200506_cal.xml | 752 | 2020-05-06 09:03:13 |
| nhtc-20200506_def.xml | 1689 | 2020-05-06 09:03:13 |
| nhtc-20200506_htm.xml | 11017 | 2020-05-06 09:03:13 |
| nhtc-20200506_lab.xml | 25207 | 2020-05-06 09:03:13 |
| nhtc-20200506_pre.xml | 13205 | 2020-05-06 09:03:13 |
| q12020nhtcearningsrele.htm | 180601 | 2020-05-06 09:03:13 |
| R1.htm | 40148 | 2020-05-06 09:03:13 |
| report.css | 2767 | 2020-05-06 09:03:13 |
| Show.js | 1085 | 2020-05-06 09:03:13 |