Annual report pursuant to Section 13 and 15(d)

NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES (Details 3)

v2.4.1.9
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