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(Loss)/Earnings Per Share - Schedule of Income and Share Data Used in the Basic and Diluted (Loss)/Earnings Per Share Calculations (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Class A Ordinary Shares [Member]      
Earnings per share [line items]      
(Loss)/profit attributable to ordinary equity holders of the parent for basic and diluted (loss)/earnings per share calculations ¥ (42,792) ¥ (10,642) ¥ 30,593
Weighted average number of ordinary shares in issue during the year for basic and diluted (loss)/earnings per share calculations 21,121,241 15,244,686 9,929,929
Class B ordinary shares [Member]      
Earnings per share [line items]      
(Loss)/profit attributable to ordinary equity holders of the parent for basic and diluted (loss)/earnings per share calculations ¥ (16,778) ¥ (5,781) ¥ 25,513
Weighted average number of ordinary shares in issue during the year for basic and diluted (loss)/earnings per share calculations 8,281,098 8,281,098 8,281,098