Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Details 4)

v2.4.1.9
INCOME TAXES (Details 4) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Commissions and transfer pricing  
Anticipated change in unrecognized tax benefits  
Change in unrecognized tax benefits within the next twelve months, minimum $ 800us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeLowerBound
/ us-gaap_ReasonablyPossibleSignificantChangeInUnrecognizedTaxBenefitsByItemAxis
= natr_CommissionsAndTransferPricingMember
Change in unrecognized tax benefits within the next twelve months, maximum 1,200us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound
/ us-gaap_ReasonablyPossibleSignificantChangeInUnrecognizedTaxBenefitsByItemAxis
= natr_CommissionsAndTransferPricingMember
Audits or the expiration of statutes of limitations in various foreign jurisdictions  
Anticipated change in unrecognized tax benefits  
Change in unrecognized tax benefits within the next twelve months, minimum 100us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeLowerBound
/ us-gaap_ReasonablyPossibleSignificantChangeInUnrecognizedTaxBenefitsByItemAxis
= natr_CloseOfAuditsOrExpirationOfStatutesOfLimitationsInForeignJurisdictionsMember
Change in unrecognized tax benefits within the next twelve months, maximum $ 300us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound
/ us-gaap_ReasonablyPossibleSignificantChangeInUnrecognizedTaxBenefitsByItemAxis
= natr_CloseOfAuditsOrExpirationOfStatutesOfLimitationsInForeignJurisdictionsMember