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

Summary of Significant Accounting Policies - Lease - Additional Information (Details)

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Summary of Significant Accounting Policies - Lease - Additional Information (Details)
12 Months Ended
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Jan. 01, 2019
CNY (¥)
Operating lease        
Finance lease liability ¥ 0   ¥ 0  
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Liabilities Liabilities Liabilities  
Lease practical expedients package true      
Operating lease right-of-use assets ¥ 42,417,409 $ 6,656,217 ¥ 41,779,086  
Operating lease liabilities ¥ 40,717,267      
ASC 842        
Operating lease        
Operating lease right-of-use assets       ¥ 3,500,000
Operating lease liabilities       ¥ 3,000,000.0