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Restricted Net Assets (Detail Textuals) ¥ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 CNY (¥)
Restricted Assets Net [Abstract] |
Percentage of funds kept aside for payment of dividends | 10.00%
Net assets transfer restricted portion | ¥ 139.9

X
- Definition Represent the net assets transfer restricted portion in the form of dividends, loans or advances. + References No definition available. + Details
Name: | tc_NetAssetsTransferRestrictedPortion
Namespace Prefix: | tc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of general reserve fund and the statutory surplus fund kept aside for payment of dividends. + References No definition available. + Details
Name: | tc_PercentageOfFundsKeptAsideForPaymentOfDividends
Namespace Prefix: | tc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | tc_RestrictedAssetsNetAbstract
Namespace Prefix: | tc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration