3.26.1 html 111 187 1 false 43 0 false 6 false false R1.htm 0000001 - Document - Cover Sheet http://www.usana.com/role/Cover Cover Cover 1 false false R2.htm 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS Sheet http://www.usana.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS CONDENSED CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) Sheet http://www.usana.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParentheticals CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) Statements 3 false false R4.htm 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Sheet http://www.usana.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Statements 4 false false R5.htm 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS??? EQUITY Sheet http://www.usana.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS??? EQUITY Statements 5 false false R6.htm 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.usana.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 6 false false R7.htm 9952156 - Disclosure - ORGANIZATION, CONSOLIDATION, AND BASIS OF PRESENTATION Sheet http://www.usana.com/role/ORGANIZATIONCONSOLIDATIONANDBASISOFPRESENTATION ORGANIZATION, CONSOLIDATION, AND BASIS OF PRESENTATION Notes 7 false false R8.htm 9952157 - Disclosure - FAIR VALUE MEASURES Sheet http://www.usana.com/role/FAIRVALUEMEASURES FAIR VALUE MEASURES Notes 8 false false R9.htm 9952158 - Disclosure - INVENTORIES Sheet http://www.usana.com/role/INVENTORIES INVENTORIES Notes 9 false false R10.htm 9952159 - Disclosure - INVESTMENT IN EQUITY SECURITIES Sheet http://www.usana.com/role/INVESTMENTINEQUITYSECURITIES INVESTMENT IN EQUITY SECURITIES Notes 10 false false R11.htm 9952160 - Disclosure - REVENUE AND CONTRACT LIABILITIES Sheet http://www.usana.com/role/REVENUEANDCONTRACTLIABILITIES REVENUE AND CONTRACT LIABILITIES Notes 11 false false R12.htm 9952161 - Disclosure - LINE OF CREDIT Sheet http://www.usana.com/role/LINEOFCREDIT LINE OF CREDIT Notes 12 false false R13.htm 9952162 - Disclosure - CONTINGENCIES Sheet http://www.usana.com/role/CONTINGENCIES CONTINGENCIES Notes 13 false false R14.htm 9952163 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS Sheet http://www.usana.com/role/DERIVATIVEFINANCIALINSTRUMENTS DERIVATIVE FINANCIAL INSTRUMENTS Notes 14 false false R15.htm 9952164 - Disclosure - COMMON STOCK AND EARNINGS PER SHARE Sheet http://www.usana.com/role/COMMONSTOCKANDEARNINGSPERSHARE COMMON STOCK AND EARNINGS PER SHARE Notes 15 false false R16.htm 9952165 - Disclosure - SEGMENT INFORMATION Sheet http://www.usana.com/role/SEGMENTINFORMATION SEGMENT INFORMATION Notes 16 false false R17.htm 9952166 - Disclosure - REDEEMABLE NONCONTROLLING INTEREST Sheet http://www.usana.com/role/REDEEMABLENONCONTROLLINGINTEREST REDEEMABLE NONCONTROLLING INTEREST Notes 17 false false R18.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 18 false false R19.htm 9955511 - Disclosure - ORGANIZATION, CONSOLIDATION, AND BASIS OF PRESENTATION (Policies) Sheet http://www.usana.com/role/ORGANIZATIONCONSOLIDATIONANDBASISOFPRESENTATIONPolicies ORGANIZATION, CONSOLIDATION, AND BASIS OF PRESENTATION (Policies) Policies 19 false false R20.htm 9955512 - Disclosure - FAIR VALUE MEASURES (Tables) Sheet http://www.usana.com/role/FAIRVALUEMEASURESTables FAIR VALUE MEASURES (Tables) Tables http://www.usana.com/role/FAIRVALUEMEASURES 20 false false R21.htm 9955513 - Disclosure - INVENTORIES (Tables) Sheet http://www.usana.com/role/INVENTORIESTables INVENTORIES (Tables) Tables http://www.usana.com/role/INVENTORIES 21 false false R22.htm 9955514 - Disclosure - REVENUE AND CONTRACT LIABILITIES (Tables) Sheet http://www.usana.com/role/REVENUEANDCONTRACTLIABILITIESTables REVENUE AND CONTRACT LIABILITIES (Tables) Tables http://www.usana.com/role/REVENUEANDCONTRACTLIABILITIES 22 false false R23.htm 9955515 - Disclosure - COMMON STOCK AND EARNINGS PER SHARE (Tables) Sheet http://www.usana.com/role/COMMONSTOCKANDEARNINGSPERSHARETables COMMON STOCK AND EARNINGS PER SHARE (Tables) Tables http://www.usana.com/role/COMMONSTOCKANDEARNINGSPERSHARE 23 false false R24.htm 9955516 - Disclosure - SEGMENT INFORMATION (Tables) Sheet http://www.usana.com/role/SEGMENTINFORMATIONTables SEGMENT INFORMATION (Tables) Tables http://www.usana.com/role/SEGMENTINFORMATION 24 false false R25.htm 9955517 - Disclosure - REDEEMABLE NONCONTROLLING INTEREST (Tables) Sheet http://www.usana.com/role/REDEEMABLENONCONTROLLINGINTERESTTables REDEEMABLE NONCONTROLLING INTEREST (Tables) Tables http://www.usana.com/role/REDEEMABLENONCONTROLLINGINTEREST 25 false false R26.htm 9955518 - Disclosure - ORGANIZATION, CONSOLIDATION, AND BASIS OF PRESENTATION (Details) Sheet http://www.usana.com/role/ORGANIZATIONCONSOLIDATIONANDBASISOFPRESENTATIONDetails ORGANIZATION, CONSOLIDATION, AND BASIS OF PRESENTATION (Details) Details http://www.usana.com/role/ORGANIZATIONCONSOLIDATIONANDBASISOFPRESENTATIONPolicies 26 false false R27.htm 9955519 - Disclosure - FAIR VALUE MEASURES - Schedule Of Assets And Liabilities Measured At Fair Value (Details) Sheet http://www.usana.com/role/FAIRVALUEMEASURESScheduleOfAssetsAndLiabilitiesMeasuredAtFairValueDetails FAIR VALUE MEASURES - Schedule Of Assets And Liabilities Measured At Fair Value (Details) Details 27 false false R28.htm 9955520 - Disclosure - FAIR VALUE MEASURES - Narrative (Details) Sheet http://www.usana.com/role/FAIRVALUEMEASURESNarrativeDetails FAIR VALUE MEASURES - Narrative (Details) Details 28 false false R29.htm 9955521 - Disclosure - INVENTORIES - Schedule of Inventory (Details) Sheet http://www.usana.com/role/INVENTORIESScheduleofInventoryDetails INVENTORIES - Schedule of Inventory (Details) Details 29 false false R30.htm 9955522 - Disclosure - INVENTORIES - Narrative (Details) Sheet http://www.usana.com/role/INVENTORIESNarrativeDetails INVENTORIES - Narrative (Details) Details 30 false false R31.htm 9955523 - Disclosure - INVESTMENT IN EQUITY SECURITIES (Details) Sheet http://www.usana.com/role/INVESTMENTINEQUITYSECURITIESDetails INVESTMENT IN EQUITY SECURITIES (Details) Details http://www.usana.com/role/INVESTMENTINEQUITYSECURITIES 31 false false R32.htm 9955524 - Disclosure - REVENUE AND CONTRACT LIABILITIES - Disaggregation of Revenue (Details) Sheet http://www.usana.com/role/REVENUEANDCONTRACTLIABILITIESDisaggregationofRevenueDetails REVENUE AND CONTRACT LIABILITIES - Disaggregation of Revenue (Details) Details 32 false false R33.htm 9955525 - Disclosure - REVENUE AND CONTRACT LIABILITIES - Narrative (Details) Sheet http://www.usana.com/role/REVENUEANDCONTRACTLIABILITIESNarrativeDetails REVENUE AND CONTRACT LIABILITIES - Narrative (Details) Details 33 false false R34.htm 9955526 - Disclosure - REVENUE AND CONTRACT LIABILITIES - Schedule Of Contract Liabilities From Contract With Customers (Details) Sheet http://www.usana.com/role/REVENUEANDCONTRACTLIABILITIESScheduleOfContractLiabilitiesFromContractWithCustomersDetails REVENUE AND CONTRACT LIABILITIES - Schedule Of Contract Liabilities From Contract With Customers (Details) Details 34 false false R35.htm 9955527 - Disclosure - LINE OF CREDIT (Details) Sheet http://www.usana.com/role/LINEOFCREDITDetails LINE OF CREDIT (Details) Details http://www.usana.com/role/LINEOFCREDIT 35 false false R36.htm 9955528 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Details) Sheet http://www.usana.com/role/DERIVATIVEFINANCIALINSTRUMENTSDetails DERIVATIVE FINANCIAL INSTRUMENTS (Details) Details http://www.usana.com/role/DERIVATIVEFINANCIALINSTRUMENTS 36 false false R37.htm 9955529 - Disclosure - COMMON STOCK AND EARNINGS PER SHARE - Schedule of Earnings Per Share (Details) Sheet http://www.usana.com/role/COMMONSTOCKANDEARNINGSPERSHAREScheduleofEarningsPerShareDetails COMMON STOCK AND EARNINGS PER SHARE - Schedule of Earnings Per Share (Details) Details 37 false false R38.htm 9955530 - Disclosure - COMMON STOCK AND EARNINGS PER SHARE - Narrative (Details) Sheet http://www.usana.com/role/COMMONSTOCKANDEARNINGSPERSHARENarrativeDetails COMMON STOCK AND EARNINGS PER SHARE - Narrative (Details) Details 38 false false R39.htm 9955531 - Disclosure - SEGMENT INFORMATION - Narrative (Details) Sheet http://www.usana.com/role/SEGMENTINFORMATIONNarrativeDetails SEGMENT INFORMATION - Narrative (Details) Details 39 false false R40.htm 9955532 - Disclosure - SEGMENT INFORMATION - Reconciliation of Earnings From Operations (Details) Sheet http://www.usana.com/role/SEGMENTINFORMATIONReconciliationofEarningsFromOperationsDetails SEGMENT INFORMATION - Reconciliation of Earnings From Operations (Details) Details 40 false false R41.htm 9955533 - Disclosure - SEGMENT INFORMATION - Schedule of Segment Reporting Information, by Operating Segment (Details) Sheet http://www.usana.com/role/SEGMENTINFORMATIONScheduleofSegmentReportingInformationbyOperatingSegmentDetails SEGMENT INFORMATION - Schedule of Segment Reporting Information, by Operating Segment (Details) Details 41 false false R42.htm 9955534 - Disclosure - SEGMENT INFORMATION - Schedule of Revenue Percentage By Product (Details) Sheet http://www.usana.com/role/SEGMENTINFORMATIONScheduleofRevenuePercentageByProductDetails SEGMENT INFORMATION - Schedule of Revenue Percentage By Product (Details) Details 42 false false R43.htm 9955535 - Disclosure - SEGMENT INFORMATION - Consolidated Net Sales and Long Lived Assets (Details) Sheet http://www.usana.com/role/SEGMENTINFORMATIONConsolidatedNetSalesandLongLivedAssetsDetails SEGMENT INFORMATION - Consolidated Net Sales and Long Lived Assets (Details) Details 43 false false R44.htm 9955536 - Disclosure - SEGMENT INFORMATION - Markets Representing Ten Percent Or More Of Consolidated Net Sales and Long-Lived Assets (Details) Sheet http://www.usana.com/role/SEGMENTINFORMATIONMarketsRepresentingTenPercentOrMoreOfConsolidatedNetSalesandLongLivedAssetsDetails SEGMENT INFORMATION - Markets Representing Ten Percent Or More Of Consolidated Net Sales and Long-Lived Assets (Details) Details 44 false false R45.htm 9955537 - Disclosure - REDEEMABLE NONCONTROLLING INTEREST (Details) Sheet http://www.usana.com/role/REDEEMABLENONCONTROLLINGINTERESTDetails REDEEMABLE NONCONTROLLING INTEREST (Details) Details http://www.usana.com/role/REDEEMABLENONCONTROLLINGINTERESTTables 45 false false All Reports Book All Reports usna-20260404.htm usna-20260404.xsd usna-20260404_cal.xml usna-20260404_def.xml usna-20260404_lab.xml usna-20260404_pre.xml http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true