Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000912061-20-000009-index-headers.html | 2020-02-12 10:27:45 | |
| 0000912061-20-000009-index.html | 2020-02-12 10:27:45 | |
| 0000912061-20-000009.txt | 2020-02-12 10:27:45 | |
 0000912061-20-000009-xbrl.zip | 22730 | 2020-02-12 10:27:45 |
| ex99-1.htm | 198168 | 2020-02-12 10:27:45 |
| FilingSummary.xml | 1745 | 2020-02-12 10:27:45 |
| Financial_Report.xlsx | 5816 | 2020-02-12 10:27:45 |
| MetaLinks.json | 19271 | 2020-02-12 10:27:45 |
| nhtc-20200204.xsd | 4627 | 2020-02-12 10:27:45 |
| nhtc-20200204_cal.xml | 650 | 2020-02-12 10:27:45 |
| nhtc-20200204_def.xml | 1500 | 2020-02-12 10:27:45 |
| nhtc-20200204_lab.xml | 27177 | 2020-02-12 10:27:45 |
| nhtc-20200204_pre.xml | 14113 | 2020-02-12 10:27:45 |
| nhtc20200212_8k.htm | 40037 | 2020-02-12 10:27:45 |
| nhtc20200212_8k_htm.xml | 4677 | 2020-02-12 10:27:45 |
| R1.htm | 40149 | 2020-02-12 10:27:45 |
| report.css | 2767 | 2020-02-12 10:27:45 |
| Show.js | 1085 | 2020-02-12 10:27:45 |