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v2.4.1.9

Basis of Presentation (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Vietnam | Discontinued Operations. |  |
Classification of Venezuela and Belarus as a Highly Inflationary Economy and Devaluation of Its Currencies |  |
Net sales revenue as a percent of consolidated net sales revenue | 0.30%natr_NetSalesRevenueAsPercentageOfConsolidatedNetSalesRevenue / us-gaap_StatementGeographicalAxis = country_VN / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 0.40%natr_NetSalesRevenueAsPercentageOfConsolidatedNetSalesRevenue / us-gaap_StatementGeographicalAxis = country_VN / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember
Belarusian subsidiary |  |
Classification of Venezuela and Belarus as a Highly Inflationary Economy and Devaluation of Its Currencies |  |
Gains or losses from a re-measurement of the financial statements using official exchange rates | 0 us-gaap_TranslationAdjustmentFunctionalToReportingCurrencyNetOfTaxPeriodIncreaseDecrease / dei_LegalEntityAxis = natr_BelarusianSubsidiariesMember | 0 us-gaap_TranslationAdjustmentFunctionalToReportingCurrencyNetOfTaxPeriodIncreaseDecrease / dei_LegalEntityAxis = natr_BelarusianSubsidiariesMember
Net sales revenue as a percent of consolidated net sales revenue | 2.10%natr_NetSalesRevenueAsPercentageOfConsolidatedNetSalesRevenue / dei_LegalEntityAxis = natr_BelarusianSubsidiariesMember | 2.50%natr_NetSalesRevenueAsPercentageOfConsolidatedNetSalesRevenue / dei_LegalEntityAxis = natr_BelarusianSubsidiariesMember

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- Definition Current period translation adjustment net of tax resulting from translating foreign currency financial statements into the reporting currency. Adjustment is reported in other comprehensive income and is not included in determining net income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32022-110900 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900 + Details
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