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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - CNY (¥)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY        
Foreign currency translation adjustment, income tax ¥ 0 ¥ 0 ¥ 0 ¥ 0
Unrealized holding gains on available-for-sale security, income taxes 3,080 1,184,686 5,809,288  
Reclassification adjustment for gains on available-for-sale securities realized in net income, income tax ¥ 64,025 ¥ 1,698,460 ¥ 5,291,894