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

Leases - Schedule on Impact of ASC 842 on Consolidated Balance Sheets (Details)

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Leases - Schedule on Impact of ASC 842 on Consolidated Balance Sheets (Details)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Operating leases:      
Right-of-use assets ¥ 37,616,541 $ 5,453,886 ¥ 42,417,409
Lease liabilities-current 16,920,429 2,453,232 17,351,427
Lease liabilities-non-current ¥ 19,528,763 $ 2,831,404 ¥ 23,365,840