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Short-Term Borrowings (Details) - CNY (¥) ¥ in Thousands | 1 Months Ended | 2 Months Ended | 4 Months Ended | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 31, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Aug. 31, 2019 | Aug. 30, 2019 | Apr. 30, 2020 | Nov. 30, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2021 | Nov. 30, 2020 | May 31, 2020 | Apr. 30, 2019 | Jun. 30, 2018 | May 31, 2018 | Dec. 31, 2017
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  | 12.24% |  |  |  |  |  |  |  | 6.00%
annual interest rate |  |  |  |  |  |  |  | 4.785% |  | 4.785% |  |  |  |  |  |
Long term line of credit |  |  |  |  |  |  |  | ¥ 90,000 |  |  |  |  |  |  |  |
Description of repaid deposit |  |  |  |  |  |  |  | The Group repaid the intention deposit of RMB 5,000 and all interest as of January 31, 2020 before April 10, 2020. And the Group repaid RMB 5,000 per month from May 2020 to September 2020, and all interest after January 30, 2020 were repaid on September 20, 2020. |  |  |  |  |  |  |  |
PRC Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  | ¥ 10,000 |  |  |  |  |  |  |  |  |  | ¥ 20,000 |  | ¥ 20,000 |
Interest rate |  |  | 6.09% |  |  |  |  |  |  |  |  |  | 1.35% |  | 1.35% |
Line of credit |  |  |  | ¥ 30,000 |  |  |  |  |  |  |  | ¥ 1,500 |  | ¥ 30,000 |  |
annual interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.655% |  |
Annual interest rate percentage | 5.20% | 4.50% |  |  |  |  |  | 6.80% |  |  |  |  |  |  |  |
Loan agreement, description |  |  |  | the Group entered into a loan agreement with a PRC commercial bank obtain a loan totalling RMB10,000 which bears interest at a rate of 5.075‰ per month, with a maturity date of February 2020. The Group drew one tranches of loan totalling RMB 10,000 and the loan was repaid on February 20, 2020. |  |  |  |  |  |  |  |  |  |  |  |
Amount withdrew | ¥ 1,000 | ¥ 1,500 |  |  |  |  |  | ¥ 37,957 |  |  |  |  |  |  |  |
Maturity date |  |  | In March 2020, the Group entered into a loan agreement with a PRC commercial bank obtain a loan totalling RMB10,000 which bears interest at a rate of 6.09% per year, with a maturity date of September 2020. |  |  |  |  |  |  |  |  |  |  |  |  |
Long term line of credit |  |  |  |  |  |  |  |  |  |  | ¥ 90,000 |  |  |  |  |
PRC Commercial Bank One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit |  |  |  | ¥ 30,000 |  |  |  |  |  |  |  |  |  |  |  |
Red Star [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual interest rate percentage |  |  |  |  | 12.00% |  |  |  |  |  |  |  |  |  |  |
Down payment |  |  |  |  |  |  |  | ¥ 30,000 |  |  |  |  |  |  |  |
Innoven Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility agreement, description |  |  |  |  |  |  |  | In August 2019, the Group entered into a credit facility agreement of USD 3,000 (approximately RMB21,079) with Innoven Capital China Pte., Ltd. (‘‘Innoven Capital’’). In August 2019 and September 2019, the Group drew RMB10,539 and RMB10,539, respectively. The interest rate is 9.0% per annum. And the loans were repaid in 2020. |  |  |  |  |  |  |  |
Seven Tranches [Member] | PRC Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  |  |  |  |  | ¥ 24,200 |  |  |  |  |  |  |
Annual interest rate percentage |  |  |  |  |  |  |  |  | 5.655% |  |  |  |  |  |  |
Three Tranches [Member] | PRC Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  |  | ¥ 9,000 |  |  |  |  |  |  |  |  |  |
Annual interest rate percentage |  |  |  |  |  | 5.655% |  |  |  |  |  |  |  |  |  |
Four Tranches [Member] | PRC Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  |  |  | ¥ 28,789 |  |  |  |  |  |  |  |  |
Annual interest rate percentage |  |  |  |  |  |  | 5.6115% |  |  |  |  |  |  |  |  |
Four Tranches [Member] | PRC Commercial Bank One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  |  |  | ¥ 28,789 |  |  |  |  |  |  |  |  |
Annual interest rate percentage |  |  |  |  |  |  | 5.6115% |  |  |  |  |  |  |  |  |
Five Tranches [Member] | PRC Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  |  |  |  |  |  |  | ¥ 4,579 |  |  |  |  |  |  |
Annual interest rate percentage |  |  |  |  |  |  |  |  | 5.655% |  |  |  |  |  |  |
One Tranches [Member] | PRC Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-Term Borrowings (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan amount |  |  | ¥ 3,520 |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + 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(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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