Prepayment and Other Current Assets, Net (Details) - CNY (¥) |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Jun. 30, 2024 |
Jun. 30, 2023 |
|
| Prepayment and Other Current Assets, Net [Line Items] | |||||
| Provisions for prepayment and other current assets | ¥ 3,360,000 | ¥ 9,035,000 | ¥ 6,125,000 | ||
| Reversal provisions for prepayment and other current assets | ¥ 11,818,000 | ||||
| Prepayment and other current assets | ¥ 0.006 | ||||
| Prepaid Expenses and Other Current Assets [Member] | |||||
| Prepayment and Other Current Assets, Net [Line Items] | |||||
| Prepayment and other current assets | ¥ 3,360,000 | ||||