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Earnings (Loss) Per Share (Details) - Schedule of Basic and Diluted Earnings (Loss) Per Ordinary Share Computations
 12 Months Ended
Dec. 31, 2023
CNY (¥)
¥ / shares
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
CNY (¥)
¥ / shares
shares
Dec. 31, 2021
CNY (¥)
¥ / shares
shares
Schedule of Basic and Diluted Earnings (Loss) Per Ordinary Share Computations [Abstract]        
Earnings (loss) attributable to ordinary shareholders of the Company (in Yuan Renminbi) ¥ (252,823,772) $ (35,695,959) ¥ 31,118,886 ¥ (174,944,484)
Weighted average number of ordinary shares outstanding for basic earnings (loss) per share calculation [1] 58,885,071 58,885,071 53,244,500 44,938,990
Basic earnings (loss) per share (in Yuan Renminbi per share) | ¥ / shares ¥ (4.29)   ¥ 0.58 ¥ (3.89)
Earnings (loss) attributable to ordinary shareholders of the Company for diluted earnings (loss) per share calculation (in Yuan Renminbi) ¥ (252,823,772) $ (35,695,959) ¥ 31,118,886 ¥ (174,944,484)
Weighted average number of ordinary shares outstanding diluted earnings (loss) per share calculation 58,885,071 58,885,071 53,244,500 44,938,990
- incremental shares issuable related to options issued 63,105
Weighted average number of shares outstanding for diluted earnings (loss) per share calculation [1] 58,885,071 58,885,071 53,307,605 44,938,990
Diluted earnings (loss) per share (in Yuan Renminbi per share) | ¥ / shares ¥ (4.29)   ¥ 0.58 ¥ (3.89)
[1] After giving effect of the reverse stock split, see Note 1.