| Cover | Sep. 10, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Document Period End Date | Sep. 10, 2020 |
| Entity Registrant Name | NATURE’S SUNSHINE PRODUCTS, INC. |
| Entity Incorporation, State or Country Code | UT |
| Entity File Number | 001-34483 |
| Entity Tax Identification Number | 87-0327982 |
| Entity Address, Address Line One | 2901 West Bluegrass Blvd., Suite 100 |
| Entity Address, City or Town | Lehi |
| Entity Address, State or Province | UT |
| Entity Address, Postal Zip Code | 84043 |
| City Area Code | 801 |
| Local Phone Number | 341-7900 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, no par value |
| Trading Symbol | NATR |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000275053 |
| Amendment Flag | true |
| Amendment Description | The sole purpose of this amendment to the Current Report on Form 8-K filed with the Securities and Exchange Commission on September 10, 2020 is to add Inline eXtensible Business Reporting Language (“XBRL”) tagging to the cover page and to furnish Exhibit 104 relating to the same. No other changes have been made. |
