Related and Nonrelated Parties [Axis]
Nonrelated Party [Member]
Related Party [Member]
Class of Stock [Axis]
Common Class A [Member]
Common Class B [Member]
Consolidated Entities [Axis]
Variable Interest Entity, Primary Beneficiary [Member]
Equity Components [Axis]
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock, Common [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Parent [Member]
Noncontrolling Interest [Member]
Subsidiaries [Member]
Ownership [Axis]
Viomi HK [Member]
Lequan [Member]
Codream H K [Member]
Yunmi Hulian [Member]
Zhumeng Hulian [Member]
Guangdong Lizi [Member]
Guangzhou Interconnect [Member]
Beijing Viomi [Member]
Counterparty Name [Axis]
Group Companies [Member]
Related Party And Third Party [Member]
Variable Interest Entity To Variable Interest Entity Primary Beneficiary And Subsidiaries [Member]
Product and Service [Axis]
Installation Services [Member]
Membership Service [Member]
Location, Statement of Income, Balance [Axis]
Customer [Axis]
Company A [Member]
Concentration Risk Benchmark [Axis]
Accounts and Notes Receivable [Member]
Concentration Risk Type [Axis]
Credit Concentration Risk [Member]
Company B [Member]
Xiaomi [Member]
Accounts Receivable [Member]
Foshan Viomi [Member]
Other Receivables [Member]
Revenue Benchmark [Member]
Revenue from Rights Concentration Risk [Member]
Award Type [Axis]
RMB [Member]
US Dollar [Member]
Others [Member]
Long-Lived Asset, Class [Axis]
Building [Member]
Computer Equipment [Member]
Vehicles [Member]
Debt Instrument [Axis]
Agricultural Bank of China [Member]
Bank of China [Member]
Industrial and Commercial Bank of China [Member]
Credit Facility [Axis]
Line of Credit [Member]
Statistical Measurement [Axis]
Minimum [Member]
Maximum [Member]
Financial Instrument [Axis]
Unused lines of Credit [Member]
Pledged Status [Axis]
Asset Pledged as Collateral [Member]
Pledging Purpose [Axis]
Sale Of Home Water Solutions [Member]
Sale Of Consumables [Member]
Saleof Kitchen Appliances and Others [Member]
Product [Member]
Service [Member]
Geographical [Axis]
HONG KONG
Income Tax Authority, Name [Axis]
Hong Kong Income Tax Within Two Million [Member]
Hong Kong Income Tax Beyond Two Million [Member]
CHINA
Income Tax Jurisdiction [Axis]
Enterprise Income Tax [Member]
Subsidiaries And Variable Interest Entities And Predecessor Operations [Member]
Legal Entity [Axis]
New Technology Enterprises [Member]
Tax Period [Axis]
Latest Tax Year [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
PRC and Hong Kong Special Administrative Region [Member]
Arrangement between PRC and Hong Kong Special Administrative Region on Avoidance of Double Taxation and Prevention of Fiscal Evasion with Respect to Taxes on Income and Capital [Member]
Sale of Stock [Axis]
IPO [Member]
Title and Position [Axis]
Mr Chens [Member]
Preferred Class A [Member]
Award Date [Axis]
Two Thousand Eighteen [Member]
Plan Name [Axis]
2015 Share Incentive Plan [Member]
2018 Share Incentive Plan [Member]
Vesting [Axis]
Share-Based Payment Arrangement, Tranche One [Member]
Share-Based Payment Arrangement, Tranche Two [Member]
Guangdong Lizi Technology Company Limited [Member]
Investment, Name [Axis]
Sunglow Wealth H K Limited [Member]
Foshan Yunmi Electric Appliances Technology Company Limited [Member]
Related Party Transaction [Axis]
Purchase Payable to Related Party [Member]
Commission Expenses Charged by Related Party [Member]
Other Expenses Charged by Related Party [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value, Inputs, Level 1 [Member]
Measurement Frequency [Axis]
Fair Value, Recurring [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 3 [Member]
Parent Company [Member]
Cover [Abstract]
Document Type
Amendment Flag
Amendment Description
Document Registration Statement
Document Annual Report
Document Quarterly Report
Document Transition Report
Document Shell Company Report
Document Shell Company Event Date
Document Period Start Date
Document Period End Date
Document Fiscal Period Focus
Document Fiscal Year Focus
Current Fiscal Year End Date
Entity File Number
Entity Registrant Name
Entity Central Index Key
Entity Primary SIC Number
Entity Tax Identification Number
Entity Incorporation, State or Country Code
Entity Address, Address Line One
Entity Address, Address Line Two
Entity Address, Address Line Three
Entity Address, City or Town
Entity Address, State or Province
Entity Address, Country
Entity Address, Postal Zip Code
Country Region
City Area Code
Local Phone Number
Extension
Written Communications
Soliciting Material
Pre-commencement Tender Offer
Pre-commencement Issuer Tender Offer
Title of 12(b) Security
No Trading Symbol Flag
Trading Symbol
Security Exchange Name
Title of 12(g) Security
Security Reporting Obligation
Annual Information Form
Audited Annual Financial Statements
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Current Reporting Status
Entity Interactive Data Current
Entity Filer Category
Entity Small Business
Entity Emerging Growth Company
Elected Not To Use the Extended Transition Period
Document Accounting Standard
Other Reporting Standard Item Number
Entity Shell Company
Entity Public Float
Entity Bankruptcy Proceedings, Reporting Current
Entity Common Stock, Shares Outstanding
Documents Incorporated by Reference [Text Block]
Statement [Table]
Statement [Line Items]
ASSETS
Current assets:
Cash and cash equivalents
Restricted cash
Short-term deposits
Short-term investments
Accounts receivable
Other receivables from related parties (net of allowance of RMB1 and nil as of December 31, 2024 and December 31, 2025, respectively)
Inventories, net
Prepaid expenses and other current assets
Total current assets
Non-current assets:
Prepaid expenses and other non-current assets
Prepaid expenses and other non-current assets
Long-term deposits
Deferred tax assets
Intangible assets, net
Right-of-use assets, net
Land use rights, net
Long-term investment
Long-term investment
TOTAL ASSETS
Liabilities and shareholders’ equity
Current liabilities:
Accounts and notes payable (including accounts and notes payable of the consolidated variable interest entities and their subsidiaries (“VIEs”) without recourse to the Company of RMB26 as of December 31, 2025 and June 30, 2026)
Advances from customers
Amount due to related parties
Accrued expenses and other liabilities (including accrued expenses and other liabilities of the consolidated VIEs without recourse to the Company of RMB1,046 and RMB5,853 as of December 31, 2024 and 2025, respectively)
Short-term borrowing
Income tax payables
Lease liabilities due within one year
Long-term borrowing-current portion
Total current liabilities
Non-current liabilities:
Accrued expenses and other liabilities–non-current portion
Long-term borrowing
Lease liabilities
Total non-current liabilities
Total liabilities
Commitments and contingencies
Shareholders’ equity
Common stock value
Treasury stock
Additional paid-in capital
Retained earnings
Accumulated other comprehensive income (loss)
Total equity attributable to shareholders of the Company
Non-controlling interests
Total shareholders’ equity
Total liabilities and shareholders' equity
Allowance for doubtful accounts receivable
Allowance for doubtful other accounts receivable
Accounts and notes payable
Accrued expenses and other liabilities-current portion
Common stock par value
Common stock, shares authorized
Common stock, shares issued
Common stock, shares outstanding
Defined Benefit Plan [Table]
Defined Benefit Plan Disclosure [Line Items]
Net revenues:
Total net revenues
Cost of revenues
Gross profit
Operating expenses
Research and development expenses
Selling and marketing expenses
General and administrative expenses
Total operating expenses
Other income, net
Income from operations
Interest income and short-term investment income, net
Income before income tax expenses
Income tax expenses
Net income (loss) from operations
Net income (loss) from operations
Net (loss) income
Less: Net (loss) income attributable to the non-controlling interest shareholders
Net (loss) income attributable to ordinary shareholders of the Company
Other comprehensive loss, net of tax:
Foreign currency translation adjustment
Total comprehensive (loss) income attributable to ordinary shareholders of the Company
Net income (loss) per share attributable to ordinary shareholders of the Company
-Basic
-Diluted
Weighted average number of ordinary shares used in calculating net income (loss) per share
-Basic
-Diluted
Balance
Balance, shares
Treasury stock, common, shares
Net loss attributable to the Company and non-controlling interest shareholders
Purchase of equity interests from non-controlling interests
Share-based compensation related to 2015 and 2018 Share Incentive Plan
Issuance of ordinary shares for exercised share options
Issuance of ordinary shares for exercised share options, shares
Repurchase of ordinary shares
Repurchase of shares
Repurchase of shares
Appropriation to statutory reserves
Dividends declared
Class B Ordinary Shares converted to Class A Ordinary Shares
Class B Ordinary shares converted to Class A Ordinary shares, shares
Balance
Balance, shares
Treasury stock, common, shares
Statement of Cash Flows [Abstract]
Net cash (used in) provided by operating activities
Cash flows from investing activities
Purchase of equipment
Purchase of lease hold improvement
Purchase of intangible assets
Purchase of short-term investments
Maturity of short-term investments
Disposal of property and equipment
Placement of long-term investments
Placement of long-term deposits
Maturities of long-term deposits
Placement of short-term deposits
Maturities of short-term deposits
Net cash used in investing activities
Cash flows from financing activities
Proceeds from exercise of vested share options
Receipt of borrowing
Repayment of borrowing
Dividend Paid
Purchase of non-controlling interests
Repurchase of ordinary shares
Net cash provided by (used in) financing activities
Effect of exchange rate changes on cash and cash equivalents
Net decrease in cash and cash equivalents and restricted cash
Net (decrease) increase in cash and cash equivalents and restricted cash
Cash and cash equivalents and restricted cash at the beginning of the year
Cash and cash equivalents and restricted cash at the end of the year
Cash and cash equivalents of continuing operations at the end of the year
Restricted cash of continuing operations at the end of the year
Supplemental disclosures of cash flow information:
Acquisition of equipment in form of other payable
Decrease in a right-of-use asset due to remeasurement of lease terms
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND PRINCIPAL ACTIVITIES
Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES
Risks and Uncertainties [Abstract]
CONCENTRATION AND RISKS
Cash and Cash Equivalents [Abstract]
CASH AND CASH EQUIVALENTS
Restricted Cash
RESTRICTED CASH
SHORT-TERM INVESTMENTS
Inventory Disclosure [Abstract]
INVENTORIES, NET
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
PREPAID EXPENSES AND OTHER ASSETS
Property, Plant, and Equipment [Abstract]
PROPERTY, PLANT, AND EQUIPMENT, NET
Land Use Right Net
LAND USE RIGHT, NET
Debt Disclosure [Abstract]
BORROWINGS
Accrued Expenses And Other Liabilities
ACCRUED EXPENSES AND OTHER LIABILITIES
Segment Reporting [Abstract]
SEGMENT REPORTING
Revenue from Contract with Customer [Abstract]
REVENUE
Income Tax Disclosure [Abstract]
INCOME TAX EXPENSES
Equity [Abstract]
ORDINARY SHARES
Share-Based Payment Arrangement [Abstract]
SHARE-BASED COMPENSATION
Earnings Per Share [Abstract]
NET INCOME (LOSS) PER SHARE
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS
Leases
LEASES
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES
Receivables [Abstract]
RESTRICTED NET ASSETS
Subsequent Events [Abstract]
SUBSEQUENT EVENT
Condensed Financial Information Disclosure [Abstract]
UNAUDITED CONDENSED FINANCIAL INFORMATION OF THE PARENT COMPANY
Basis of presentation
Consolidation
Use of estimates
Foreign currency translation
Convenience translation
Accounts receivable
Revenue recognition
Current expected credit losses
Income taxes
Statutory reserves
Income (Loss) per share
Recently issued accounting pronouncements
SCHEDULE OF PRINCIPAL SUBSIDIARIES AND VIES
SCHEDULE OF FINANCIAL STATEMENT AMOUNTS AND BALANCES OF VIES
SCHEDULE OF ACTIVITY IN ALLOWANCE FOR CREDIT LOSSES RELATED TO ACCOUNTS AND NOTES RECEIVABLE AND OTHER RECEIVABLES FROM RELATED PARTIES
SUMMARY OF CONCENTRATION OF RISK
SUMMARY OF CASH AND CASH EQUIVALENTS
SCHEDULE OF INVENTORIES
SCHEDULE OF PREPAID EXPENSES AND OTHER ASSETS
SCHEDULE OF PROPERTY, PLANT, AND EQUIPMENT, NET
SUMMARY OF LAND USE RIGHT, NET
SCHEDULE OF ESTIMATED FUTURE AMORTIZATION EXPENSE FOR LAND USE RIGHTS
SCHEDULE OF SHORT-TERM BORROWINGS
SCHEDULE OF LONG-TERM BORROWINGS
SCHEDULE OF FUTURE MATURITIES OF LONG-TERM BORROWINGS
SCHEDULE OF ACCRUED EXPENSES AND OTHER LIABILITIES
SCHEDULE OF PRODUCT WARRANT ACTIVITIES
SCHEDULE OF REVENUE
SCHEDULE OF CURRENT AND DEFERRED COMPONENTS
SCHEDULE OF RECONCILIATION INCOME TAX EXPENSES
SCHEDULE OF PER SHARES EFFECT OF TAX
SCHEDULE OF DEFERRED TAX ASSETS
SCHEDULE OF MOVEMENT OF VALUATION ALLOWANCE
SUMMARY OF COMPENSATION EXPENSE RECOGNIZED FOR SHARE-BASED AWARDS
SUMMARY OF STOCK OPTION ACTIVITY
SUMMARY OF NET INCOME PER SHARE, BASIC AND DILUTED
SUMMARY OF RELATED PARTY TRANSACTION RELATIONSHIP
SUMMARY OF RELATED PARTY TRANSACTIONS
SUMMARY OF ASSETS MEASURED AT FAIR VALUE ON RECURRING BASIS
SUMMARY OF COMPONENTS OF LEASE EXPENSE
SUMMARY OF SUPPLEMENTAL CASH FLOW INFORMATION FOR LEASES
SUMMARY OF AGGREGATE FUTURE MINIMUM RENTAL PAYMENTS UNDER NON-CANCELABLE AGREEMENT
SUMMARY OF CAPITAL AND OTHER COMMITMENT
SUMMARY OF UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Percentage of beneficial ownership
Accounts receivable from related parties
Amounts due from Group companies
Inventories
Other assets
Amounts due to Group companies
Accrued expenses and other liabilities
Other liabilities
Net income (loss)
Accounts receivable from net of allowance
Entity incorporation date
Balance at beginning of the year
Current year provision
Reversals
Write off
Balance at end of the year
Nature of Operation, Product Information, Concentration of Risk [Table]
Product Information [Line Items]
Foreign currency exchange buying rate
Number of installment payments from customer
Percentage of second installment payment arrangement to total revenue
Expected sales return
Expected return asset
Refund liability
Value added tax rate
Deferred revenue
Revenue recognized amount
Expect to recognize unearned amount for remaining performance obligation in 2026
Allowance for doubtful accounts
Expected credit loss provision for accounts and notes receivable and other receivables
Uncertain tax positions, interest and penalties recognized
Statutory reserve funds
[custom:AccumulatedStatutoryReserveFunds]
Concentration Risk [Table]
Concentration Risk [Line Items]
Accounts and notes receivable
Concentration risk, percentage
Accounts receivable from a related party
Other receivables from a related party
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Deposit required for issuing bank acceptance bills
Capital deposit
Foreign exchange deposits
Finished goods
Raw materials
Inventories, net
Inventory written down
Advances to suppliers
Prepaid expenses
Other receivables
Prepayment for equipment
Lease hold improvement
Expected return assets
Total
Less: non-current portion
Prepaid expenses and other assets-current portion
Property, Plant, and Equipment [Table]
Property, Plant, and Equipment [Line Items]
Total
Less: accumulated depreciation
Property, plant, and equipment, net
Depreciation expense
Impairment value
Summary Of Land Use Right Net
Land use right
Less: accumulated amortization
Land use right, net
Schedule Of Estimated Future Amortization Expense For Land Use Rights
Remaining in fiscal year 2026
2027
2028
2029
2030
Thereafter
Amortization of land use rights
Short-Term Debt [Table]
Short-Term Debt [Line Items]
Short term borrowings
Short term debt term
Maturity date
Fixed interest rate
Line of Credit Facility [Table]
Line of Credit Facility [Line Items]
Total
Less: long-term borrowing-current portion
Long-term borrowing
Remaining in fiscal year 2026
2027
2028
2029
2030
Total long-term borrowings
Interest expenses for short-term borrowings
Annual weighted average interest rate for short-term borrowings
Proceeds from long-term lines of credit
Remains the credit limit
Interest rate
Total loan amount repaid
Outstanding balance of long-term borrowings
Unutilized lines of credit
Net book value of building properties
Interest expense, borrowings
Schedule Of Accrued Expenses And Other Liabilities
Accrued payroll and welfare
Payment for purchase of property
Product warranty
Professional fee payables
Deposit from suppliers
Marketing and promotion expenses
Freight payable
Other tax payable
Installation fee payables
Refund liabilities
Other current liabilities
Total
Less: non-current portion
Accrued expenses and other liabilities-current portion
Schedule Of Product Warrant Activities
Standard Product Warranty Accrual
Provided during the year
Utilized during the year
Standard Product Warranty Accrual
Number of reportable segment
Number of operating segment
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Line Items]
Total
Current tax expenses
Deferred tax benefits
Income tax expenses (benefits)
Income (loss) from operations in the PRC
Income (loss) from overseas entities
Tax expenses (benefits) from overseas entities at PRC enterprise income tax rate
Tax Jurisdiction of Domicile [Extensible Enumeration]
Tax expense from overseas entities at PRC enterprise income tax rate, percentage
Effect of income tax in jurisdictions other than the PRC
Effect of income tax in jurisdictions other than the PRC, percentage
Income tax on tax holiday
Income tax on tax holiday, percentage
Tax effect of permanent differences
Tax effect of permanent differences, percentage
Change in valuation allowance
Change in valuation allowance, percentage
Effect of share-based compensation
Effect of share-based compensation, percentage
Income tax expenses, percentage
Net income (loss) per share effect–basic
Net income (loss) per share effect–diluted
Net operating loss carry forwards
Accrued expenses and others
Inventories write downs
Deferred income
Total deferred tax assets
Less: valuation allowance
Deferred tax assets, net
Balance at beginning of the period
Provided
Balance at end of the period
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Line Items]
Income tax rate
Investment company tax return of capital distribution
Percentage of qualified research and development expenses enterprises are entitled to claim as additional tax deduction
Withholding tax rate
Minimum percentage of equity interests
Undistributed earnings available for distribution
Uncertain tax positions
Statute of limitations year
Statute of limitations extended period
Stock, Class of Stock [Table]
Class of Stock [Line Items]
Shares issued
Shates issued
Common Stock shares authorized
Common stock, shares authorized
Common stock shares outstanding
Shates issued
Shares outstanding
—Share options
Number of options, Outstanding
Weighted average exercise price, Outstanding
Weighted-average remaining contractual life (years), Outstanding
Aggregate intrinsic value, Outstanding
Number of options, Granted
Weighted average exercise price, Granted
Number of options, Forfeited
Weighted average exercise price, Forfeited
Number of options, Exercised
Weighted average exercise price, Exercised
Number of options, Outstanding
Weighted average exercise price, Outstanding
Aggregate intrinsic value, Outstanding
Number of options, Exercisable
Weighted average exercise price, Exercisable
Weighted-average remaining contractual life (years), Exercisable
Aggregate intrinsic value, Exercisable
Number of options, Expected to vest
Weighted average exercise price, Expected to vest
Weighted-average remaining contractual life (years), Expected to vest
Aggregate intrinsic value, Expected to vest
Maximum number of shares issued under share incentive plan
Number of share options granted to employees under stock incentive plans
Share options vested percentage
Weighted average grant date fair value of options granted
Unrecognized compensation expenses related to options
Equity interests
Equity investments amount
Numerator for basic calculation-Net income (loss) attributable to ordinary shareholders
Denominator for basic calculation-weighted average ordinary shares outstanding
Dilutive effect of share options
Denominator for diluted calculation
Basic net income (loss) per ordinary share
Diluted net income (loss) per ordinary share
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Relationship with the Group
Related Party Transaction [Table]
Related Party Transaction [Line Items]
Accounts receivable from a related party
Other receivables from related parties
Amounts due to related parties
Purchase from related parties
Revenue from related parties
Selling and marketing expenses
Fair Value, off-Balance-Sheet Risk [Table]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Short-term investments
Summary Of Components Of Lease Expense
Lease cost
Operating lease expense
Short-term lease expense
Total lease cost
Summary Of Supplemental Cash Flow Information For Leases
Operating cash flows relating to operating leases
Remaining in fiscal year 2026
2027
2028
Total future minimum rental payment
Less amount representing imputed interest
Present value of future minimum rental payments
Less current portion, recorded in other current liabilities
Long-term lease liabilities, recorded in other long-term liabilities
Operating leases, weighted average discount rate
Operating leases, weighted-average remaining lease term
Property, plant, and equipment
Future minimum commitments under non-cancelable agreements
Amount of restricted net assets for consolidated and unconsolidated subsidiaries
Condensed Financial Statements [Table]
Condensed Financial Statements, Captions [Line Items]
Amounts due from Group companies
Investments in subsidiaries
Other assets
Liabilities
Accrued expenses and other liabilities
Amounts due to Group companies
Shareholders’ equity
Ordinary shares value
Ordinary shares, par value
Ordinary shares, shares authorized
Ordinary shares, shares issued
Ordinary shares, shares outstanding
Other (expenses) income, net
Equity in gain (loss) of subsidiaries/VIEs
Interest and investment income, net
Net income (loss) attributable to ordinary shareholders of the Company
Net cash provided by operating activities
Net cash used in by investing activities
Net cash used in financing activities
Effect of exchanges rates on cash and cash equivalents
Net increase (decrease) in cash and cash equivalents
Short term deposit.
Company A [Member]
Accounts and Notes Receivable [Member]
Company B [Member]
Other receivables from related parties.
Long term deposits.
Land use rights net
Accrued liabilities and other liabilities current
Xiaomi [Member]
Foshan Viomi [Member]
Other Receivables [Member]
RMB [Member]
US Dollar [Member]
Others [Member]
Restricted Cash Disclosure [Text Block]
RestrictedCashHeldForIssuingBankAcceptanceBillsCurrent
Restricted Cash held for capital deposit
Prepayment for equipment
Lease Hold improvement
Expected return assets
Prepaid expense and other asset non current.
Land Use Rights Net Disclosure [Text Block]
Schedule of Land Use Rights Net [Table Text Block]
Land use rights gross
Land use rights accumulated amortization
Amortization of land use rights.
Land use rights future amortization expense [Table Text Block]
Land use rights expected amortization year one.
Land use rights expected amortization remainder of fiscal year.
Land use rights expected amortization year two.
Land use rights expected amortization year three.
Land use rights expected amortization year four.
Land use rights expected amortization after year five.
Interest income expense and short term investments income non operating net.
Agricultural Bank of China [Member]
Bank of China [Member]
Industrial and Commercial Bank of China [Member]
Long term debt current portion.
Purchase of equity interests from non controlling interests.
StockIssuedDuringThePeriodAppropriationToStatutoryReserves
Placement of long term investments.
Placement of long term deposits.
Maturities of long term deposits.
Placement of short term deposits.
Maturities of short term deposits.
Dividend paid.
Purchase of noncontrolling interests.
Decrease in right of use asset due to remeasurement of lease terms.
Accrued liabilities and other liabilities current disclosure [Text Block]
Payments for purchase of property current.
Deposits from suppliers current.
Freight payable current.
Installation fee payables current.
Accrued expenses and other liabilities non current.
Entity incorporation date of incorporation month and year.
Viomi HK [Member]
Lequan [Member]
Codream H K [Member]
Yunmi Hulian [Member]
Zhumeng Hulian [Member]
Hong Kong Income Tax Within Two Million [Member]
Hong Kong Income Tax Beyond Two Million [Member]
Guangdong Lizi [Member]
Enterprise Income Tax [Member]
Guangzhou Interconnect [Member]
Subsidiaries And Variable Interest Entities And Predecessor Operations [Member]
Beijing Viomi [Member]
New Technology Enterprises [Member]
Percentage of qualified research and development expenses enterprises are entitled to claim as additional tax deduction.
Withholding income tax rate.
PRC and Hong Kong Special Administrative Region [Member]
Minimum percentage of equity interests in PRC foreign invested enterprise to be subject to special with holding tax rate.
Arrangement between PRC and Hong Kong Special Administrative Region on Avoidance of Double Taxation and Prevention of Fiscal Evasion with Respect to Taxes on Income and Capital [Member]
Amount due fromgGroup companies non current
Amount due to group companies non current
Group Companies [Member]
Related Party And Third Party [Member]
Income tax on tax holiday.
Income tax on tax holiday percentage.
VariableInterestEntityToVariableInterestEntityPrimaryBeneficiaryAndSubsidiariesMember
Income tax holiday income tax benefits per share basic.
Income tax holiday income tax benefits per share diluted.
Statute of limitations.
Statute of limitations extended period.
Number of installment payments from Xiaomi Telecommunication Technology.
Percentage of second installment payment arrangement to revenue.
Contract with customer expected sales return.
Value added tax rate.
Installation Services [Member]
Membership Service [Member]
ProvisionForAccountsReceivableLoanLeaseAndOtherLosses
Statutory Reserves [Policy Text Block]
Statutory reserve funds.
Accumulated statutory reserve funds.
Sale Of Home Water Solutions [Member]
Sale Of Consumables [Member]
Saleof Kitchen Appliances and Others [Member]
Two Thousand Eighteen [Member]
Mr Chens [Member]
Supplemental Cash Flow Information for Leases [Table Text Block]
Lessee operating lease liability short term lease and leases not yet commenced payments due next twelve months.
Schedule of Capital and Other Commitment [Table Text Block]
Amounts due from Group companies.
Amounts due to Group companies.
Two Thousand Fifteen Share Incentive Plan [Member]
Two Thousand Eighteen Share Incentive Plan [Member]
Guangdong Lizi Technology Company Limited [Member]
Sunglow Wealth H K Limited [Member]
Dilutive effect of share options.
Schedule of Related Party Transaction Relationship [Table Text Block]
Foshan Yunmi Electric Appliances Technology Company Limited [Member]
Purchase Payable to Related Party [Member]
Commission Expenses Charged by Related Party [Member]
Other Expenses Charged by Related Party [Member]
Income Tax Jurisdiction, Domestic Federal [Member]
Assets, Current
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization
Assets, Noncurrent
Assets
Liabilities, Current
Liabilities, Noncurrent
Liabilities [Default Label]
Treasury Stock, Value
Equity, Attributable to Parent
Equity, Including Portion Attributable to Noncontrolling Interest
Liabilities and Equity
Cost of Revenue
Research and Development Expense
General and Administrative Expense
Operating Expenses
Operating Income (Loss)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Net Income (Loss) Available to Common Stockholders, Basic
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Treasury Stock, Common, Shares
Stock Repurchased During Period, Value
Dividends
Payments to Acquire Property, Plant, and Equipment
Payment for Leasehold Improvement, Lessor, Investing Activity
Payments to Acquire Intangible Assets
Payments to Acquire Short-Term Investments
PlacementOfLongtermDeposits
PlacementOfShorttermDeposits
Repayments of Debt
DividendPaid
PurchaseOfNoncontrollingInterests
Payments for Repurchase of Common Stock
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Accounts Receivable [Policy Text Block]
Financing Receivable, Allowance for Credit Loss, Recovery
Financing Receivable, Allowance for Credit Loss, Writeoff
Prepaid Expense and Other Assets
PrepaidExpenseAndOtherAssetNoncurrent
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization
LandUseRightsAccumulatedAmortization
Long-Term Debt
LongTermDebtCurrentPortion
Long-Term Debt, Maturity, Remainder of Fiscal Year
Long-Term Debt, Maturity, Year One
Long-Term Debt, Maturity, Year Two
Long-Term Debt, Maturity, Year Three
Long-Term Debt, Maturity, Year Four
Accrued Liabilities and Other Liabilities
Standard Product Warranty Accrual
Standard Product Warranty Accrual, Decrease for Payments
Deferred Tax Assets, Gross
Deferred Tax Assets, Valuation Allowance
Deferred Tax Assets, Net of Valuation Allowance
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount
Shares, Issued
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period
Investments, Fair Value Disclosure
Lease, Cost
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year
Lessee, Operating Lease, Liability, to be Paid, Year One
Lessee, Operating Lease, Liability, to be Paid, Year Two
Lessee, Operating Lease, Liability, to be Paid
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Operating Lease, Liability
AmountDueFromGroupCompanies
Other Assets
Accrued Liabilities
AmountDueToGroupCompanies