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Other Income and Expenses - Additional Information (Details) - CNY (¥)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Profit or loss [abstract]      
Research and development costs ¥ 27,811,000 ¥ 12,598,000 ¥ 10,258,000
Forfeited contributions available to reduce its contributions to the pension scheme 0 0 0
Other operating expense 1,112,000 4,000 41,000
Compensation Payables On Contract Terminations ¥ 622,000,000 ¥ 0 ¥ 0