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NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES (Details 3) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013
Intangible Assets |  |
Intangible assets, net of accumulated amortization | 704us-gaap_IntangibleAssetsNetExcludingGoodwill | $ 853us-gaap_IntangibleAssetsNetExcludingGoodwill
Product formulations |  |
Intangible Assets |  |
Intangible assets, net of accumulated amortization | 704us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = natr_ProductFormulationsMember | $ 853us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = natr_ProductFormulationsMember
Product formulations | Minimum |  |
Intangible Assets |  |
Estimated economic lives | 9 years |
Product formulations | Maximum |  |
Intangible Assets |  |
Estimated economic lives | 15 years |

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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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