XML 94 R77.htm IDEA: XBRL DOCUMENT
v3.22.1

Income Tax Expenses - Additional Information (Details) - CNY (¥) ¥ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Hong Kong | Taxable Income Within HKD$2 million |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Income tax rate | 8.25% |  |  |
Hong Kong | Taxable Income Beyond HKD$2 million |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Income tax rate | 16.50% |  |  |
PRC |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Percentage of qualified research and development expenses enterprises are entitled to claim as additional tax deduction | 100.00% | 75.00% | 50.00% | 50.00%
Withholding tax rate | 10.00% |  |  |
Undistributed earnings available for distribution | ¥ 956,980 | ¥ 827,531 |  |
Statute of limitations year | 3 years |  |  |
Statute of limitations extended period | 5 years |  |  |
PRC | 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 |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Withholding tax rate | 5.00% |  |  |
Minimum percentage of equity interests in PRC foreign-invested enterprise to be subject to special withholding tax rate | 25.00% |  |  |
Withholding income tax rate on dividends for Hong Kong holding company which is not considered to be beneficial owner | 10.00% |  |  |
PRC | 2018 |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Percentage of qualified research and development expenses enterprises are entitled to claim as additional tax deduction | 75.00% |  |  |
PRC | 2020 |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Percentage of qualified research and development expenses enterprises are entitled to claim as additional tax deduction | 75.00% |  |  |
PRC | Enterprise Income Tax |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Income tax rate | 25.00% |  |  |
PRC | Subsidiaries and VIEs and Predecessor Operations |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Income tax rate | 25.00% | 25.00% | 25.00% |
PRC | High and New Technology Enterprises |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Income tax rate | 15.00% |  |  |

X
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
Name: | us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The earnings that is allocated to common stock and participating securities to the extent that each security may share in earnings as if all of the earnings for the period had been distributed. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 66 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2814-109256 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256 + Details
Name: | us-gaap_UndistributedEarnings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Income tax disclosure. + References No definition available. + Details
Name: | viot_IncomeTaxDisclosureLineItems
Namespace Prefix: | viot_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum percentage of equity interests in PRC foreign-invested enterprise to be subject to special withholding tax rate. + References No definition available. + Details
Name: | viot_MinimumPercentageOfEquityInterestsInPRCForeignInvestedEnterpriseToBeSubjectToSpecialWithholdingTaxRate
Namespace Prefix: | viot_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of qualified research and development expenses enterprises are entitled to claim as additional tax deduction. + References No definition available. + Details
Name: | viot_PercentageOfQualifiedResearchAndDevelopmentExpensesEnterprisesAreEntitledToClaimAsAdditionalTaxDeduction
Namespace Prefix: | viot_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Statute of limitations. + References No definition available. + Details
Name: | viot_StatuteOfLimitations
Namespace Prefix: | viot_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Statute of limitations extended period. + References No definition available. + Details
Name: | viot_StatuteOfLimitationsExtendedPeriod
Namespace Prefix: | viot_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Withholding income tax rate. + References No definition available. + Details
Name: | viot_WithholdingIncomeTaxRate
Namespace Prefix: | viot_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Withholding income tax rate on dividends for holding company which is not considered to be beneficial owner. + References No definition available. + Details
Name: | viot_WithholdingIncomeTaxRateOnDividendsForHoldingCompanyWhichIsNotConsideredToBeBeneficialOwner
Namespace Prefix: | viot_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_HK
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityNameAxis=viot_HongKongIncomeTaxWithinTwoMillionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityNameAxis=viot_HongKongIncomeTaxBeyondTwoMillionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_CN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=viot_ArrangementBetweenPRCAndHongKongSpecialAdministrativeRegionOnAvoidanceOfDoubleTaxationAndPreventionOfFiscalEvasionWithRespectToTaxesOnIncomeAndCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=us-gaap_EarliestTaxYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=us-gaap_LatestTaxYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=viot_EnterpriseIncomeTaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=viot_SubsidiariesAndVariableInterestEntitiesAndPredecessorOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=viot_HighAndNewTechnologyEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |