XML 86 R53.htm IDEA: XBRL DOCUMENT
v3.21.1

Organization and Reorganization - Major vie's and major subsidiaries (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020
TuanChe Information Limited ("TuanChe Information") |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Year of incorporation | 2012
Principal activities | Investment holding
Percentage of direct or indirect economic ownership | 100.00%
TuanYuan Internet Technology (Beijing) Co., Ltd. ("TuanYuan") |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Year of incorporation | 2013
Principal activities | Technical support and consulting services, auto shows, special promotion events, virtual dealership, online marketing services
Percentage of direct or indirect economic ownership | 100.00%
Longye |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Year of incorporation | 2018
Principal activities | Investment holding
Percentage of direct or indirect economic ownership | 100.00%
Longye |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Year of incorporation | 2018
Principal activities | Investment holding
Percentage of direct or indirect economic ownership | 100.00%
Beijing Sangu Maolu Information Technology Co., Ltd. ("Sangu Maolu") |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Year of incorporation | 2019
Principal activities | Technical support and consulting services
Percentage of direct or indirect economic ownership | 100.00%
Chema Technology (Beijing) Co., Ltd. ("Chema") |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Year of incorporation | 2018
Principal activities | Technical support and consulting services
Percentage of direct or indirect economic ownership | 100.00%

X
- Definition Year when an entity was incorporated. + References No definition available. + Details
Name: | tc_EntityYearOfIncorporation
Namespace Prefix: | tc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A description of the principal activities of an investee accounted for under the equity method. + References No definition available. + Details
Name: | us-gaap_EquityMethodInvestmentDescriptionOfPrincipalActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=tc_TuancheInformationLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=tc_TuanyuanInternetTechnologyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=tc_LongyeInternationalLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=tc_LongYeInformationTechnologyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=tc_BeijingSanguMaoluInformationTechnologyCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=tc_ChemaTechnologyBeijingCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |