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Short-Term and Long-Term Debts (Details) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Aug. 11, 2022 CNY (¥) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥) | Sep. 21, 2023 CNY (¥) | Jun. 30, 2023 CNY (¥)
Short-Term and Long-Term Debts [Line Items] |  |  |  |  |  |  |
Rural commercial bank for a credit line |  |  |  |  |  | ¥ 20,000,000 | ¥ 148,000,000
Amount borrowed |  | ¥ 128,247,467 | $ 18,107,144 | ¥ 17,093,316 |  |  |
Repayments of credit facilities |  | ¥ 1,530,000 | $ 216,019 | 140,000 |  |  |
Minimum [Member] |  |  |  |  |  |  |
Short-Term and Long-Term Debts [Line Items] |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  | 3.70% | 3.70% |  |  |  |
Maximum [Member] |  |  |  |  |  |  |
Short-Term and Long-Term Debts [Line Items] |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  | 4.00% | 4.00% |  |  |  |
Zhejiang Shaoxing Ruifeng Rural Commercial Bank [Member] |  |  |  |  |  |  |
Short-Term and Long-Term Debts [Line Items] |  |  |  |  |  |  |
Rural commercial bank for a credit line | ¥ 100,000,000 |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  | 5.40% | 5.40% |  |  |  |
Amount borrowed |  | ¥ 108,247,467 |  | 17,093,316 |  |  |
Repayments of credit facilities |  | 1,530,000 |  | ¥ 140,000 |  |  |
Expiration period of credit agreement | Jul. 25, 2030 |  |  |  |  |  |
Mr. Qifeng [Member] |  |  |  |  |  |  |
Short-Term and Long-Term Debts [Line Items] |  |  |  |  |  |  |
Amount borrowed |  | 20,000,000 |  |  |  |  |
Repayments of credit facilities |  |  |  |  |  |  |

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