Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Common Shares - Additional Information (Details)

v3.22.1
Common Shares - Additional Information (Details)
$ / shares in Units, $ in Millions
 1 Months Ended 12 Months Ended
Apr. 10, 2020
CNY (¥)
Apr. 10, 2020
USD ($)
Dec. 24, 2019
CNY (¥)
shares
Aug. 06, 2019
shares
May 31, 2020
USD ($)
$ / shares
shares
Dec. 31, 2021
shares
Dec. 31, 2020
CNY (¥)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
CNY (¥)
shares
Dec. 31, 2019
USD ($)
shares
Common shares                    
Total cash consideration | ¥             ¥ 4,003,530      
ADS                    
Common shares                    
Authorized amount to repurchase (in dollars) | $         $ 1.0          
Repurchase of common share         450,337          
Average stock price | $ / shares         $ 1.2631          
Total cash consideration             ¥ 4,000,000.0 $ 0.6    
Shares used for settlement of vested share options and restricted shares vesting           957,186 749,253 749,253    
Huanqiuyimeng                    
Common shares                    
Shares issued for acquisition       9,360,000         9,360,000 9,360,000
Private Placement                    
Common shares                    
Issuance of common shares upon private placement (in shares)     5,662,634              
Proceeds from issuance of common stock ¥ 8,500,000 $ 1.2 ¥ 10,000,000.0           ¥ 61,700,000 $ 8.8