Parent Directory| Name | Size | Last Modified |
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 0001157523-20-001238-index-headers.html | 2020-09-08 16:46:47 | |
| 0001157523-20-001238-index.html | 2020-09-08 16:46:47 | |
| 0001157523-20-001238.txt | 2020-09-08 16:46:47 | |
 0001157523-20-001238-xbrl.zip | 13391 | 2020-09-08 16:46:47 |
| a52282047.htm | 29860 | 2020-09-08 16:46:47 |
| a52282047ex99_1.htm | 6033 | 2020-09-08 16:46:47 |
| a52282047_htm.xml | 4086 | 2020-09-08 16:46:47 |
| FilingSummary.xml | 1692 | 2020-09-08 16:46:47 |
| Financial_Report.xlsx | 5478 | 2020-09-08 16:46:47 |
| MetaLinks.json | 21189 | 2020-09-08 16:46:47 |
| R1.htm | 38650 | 2020-09-08 16:46:47 |
| report.css | 2767 | 2020-09-08 16:46:47 |
| Show.js | 1084 | 2020-09-08 16:46:47 |
| usna-20200904.xsd | 4186 | 2020-09-08 16:46:47 |
| usna-20200904_lab.xml | 23692 | 2020-09-08 16:46:47 |
| usna-20200904_pre.xml | 16824 | 2020-09-08 16:46:47 |