XML 70 R37.htm IDEA: XBRL DOCUMENT
v3.21.1

Accounts receivable, net (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Accounts receivable, net |
Schedule of accounts receivable | Accounts and notes receivables are consisted of the following:
|  | December 31, 2019 |  | December 31, 2020
|  | RMB |  | RMB
Notes receivable |  | 12,209 |  | 5,235
Accounts receivable, gross |  | 74,357 |  | 84,189
Less: allowance for doubtful accounts |  | (14,175) |  | (23,298)
Accounts receivable, net |  | 72,391 |  | 66,126
Schedule of allowance for doubtful accounts |
|  | December 31, 2018 |  | December 31, 2019 |  | December 31, 2020
|  | RMB |  | RMB |  | RMB
Balance at the beginning of the year |  | 418 |  | 491 |  | 14,175
Additions charged to bad debt expense |  | 491 |  | 13,684 |  | 13,654
Write-off of bad debt allowance |  | (418) |  | — |  | (4,531)
Balance at the end of the year |  | 491 |  | 14,175 |  | 23,298

X
- Definition Tabular disclosure of the allowance for doubtful accounts. + References No definition available. + Details
Name: | tc_ScheduleOfAllowanceForDoubtfulAccountsTableTextBlock
Namespace Prefix: | tc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration