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

Statutory Reserves - Additional Information (Details)

Statutory Reserves - Additional Information (Details) - CNY (¥)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Statutory Reserves Disclosure [Abstract]    
Required percentage of after tax profit transferred to general reserve fund 10.00%  
Percentage of registered capital limit for transfer of after tax profit to general reserve fund 50.00%  
Accumulated of after tax profit to statutory reserve fund ¥ 25,698,704 ¥ 25,671,341