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

Consolidated Balance Sheets (Parenthetical)

v3.23.1
Consolidated Balance Sheets (Parenthetical)
Dec. 31, 2022
CNY (¥)
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
CNY (¥)
shares
Dec. 31, 2021
$ / shares
Accrued expenses and other payables of VIE without recourse to the Company ¥ 292,542,513 $ 42,414,678 ¥ 267,978,614  
Common shares, Par value (in dollars per share) | $ / shares   $ 0.01   $ 0.01
Common shares, authorized shares 500,000,000 500,000,000 500,000,000  
Common shares, Issued shares 63,829,698 63,829,698 63,832,534  
Common shares, Outstanding shares 62,753,840 62,753,840 62,753,840  
Treasury shares, number of common shares 585,358 585,358 585,358  
Variable Interest Entity, Primary Beneficiary | Nonrecourse        
Accrued expenses and other payables of VIE without recourse to the Company | ¥ ¥ 134,604   ¥ 124,089