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Income Tax Expenses - Additional Information (Details) - CNY (¥) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Disclosure [Line Items] |  |  |  |
Tax rate on taxable income | 16.50% |  |  |
Uniform income tax rate | 25.00% | 25.00% | 25.00% | 25.00%
Withholding tax percentage on dividend distributed by foreign investment enterprises | 10.00% |  |  |
Undistributed earnings and reserves available for distribution | ¥ 72,603,000 | ¥ 65,976,000 |  |
Unrecognized uncertain tax positions | ¥ 0 | ¥ 0 |  |
Hong Kong Tax Rate for Profits at 2 Million |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Tax rate on taxable income | 8.25% |  |  |
Hong Kong Tax Rate for Profits over 2 Million |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Tax rate on taxable income | 16.50% |  |  |
EIT Law | Maximum |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Percentage of additional tax deduction for research and development activities | 100.00% |  |  |
EIT Law | Minimum |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Percentage of additional tax deduction for research and development activities | 75.00% |  |  |
China and Hong Kong Special Administrative Region |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Minimum required investment percentage to consider 5% withholding tax rate | 25.00% |  |  |
China and Hong Kong Special Administrative Region | Maximum |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |
Withholding tax percentage on dividend distributed by foreign investment enterprises | 5.00% |  |  |

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