Accounts and Notes Receivables, Net (Details) - CNY (¥) ¥ in Thousands |
6 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2024 |
Jun. 30, 2023 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Accounts and Notes Receivables, Net (Details) [Line Items] | |||||
| Allowance for doubtful accounts | ¥ 4,768 | ¥ 8,143 | ¥ 17,796 | ||
| Write-off for doubtful accounts | ¥ 770 | ¥ 770 | ¥ 2,696 | ||
| Accounts Receivable [Member] | |||||
| Accounts and Notes Receivables, Net (Details) [Line Items] | |||||
| Allowance for doubtful accounts | ¥ 1,603 | ¥ 1,840 | |||