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| 0000275053-20-000041-index.html | 2020-11-09 16:14:46 | |
| 0000275053-20-000041.txt | 2020-11-09 16:14:46 | |
 0000275053-20-000041-xbrl.zip | 325931 | 2020-11-09 16:14:46 |
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| Financial_Report.xlsx | 64954 | 2020-11-09 16:14:46 |
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| natr-20200930.htm | 1508005 | 2020-11-09 16:14:46 |
| natr-20200930.xsd | 35719 | 2020-11-09 16:14:46 |
| natr-20200930_cal.xml | 69676 | 2020-11-09 16:14:46 |
| natr-20200930_def.xml | 168649 | 2020-11-09 16:14:46 |
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| natr-20200930_htm.xml | 1178565 | 2020-11-09 16:14:46 |
| natr-20200930_lab.xml | 510457 | 2020-11-09 16:14:46 |
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| natr2020930-ex311.htm | 14277 | 2020-11-09 16:14:46 |
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| natr2020930-ex321.htm | 6442 | 2020-11-09 16:14:46 |
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| report.css | 2767 | 2020-11-09 16:14:46 |
| Show.js | 1085 | 2020-11-09 16:14:46 |