Other Current Assets - Schedule of Other Current Assets (Details)	Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)
Prepaid Expense and Other Assets [Abstract]
Value-added tax recoverable	¥ 23,731,587		¥ 33,077,492
Deferred offering related expenses	0		7,108,562
Deposits	3,434,080		919,630
Others	109,548		354,806
Total	¥ 27,275,215	$ 3,916,264	¥ 41,460,490

Specific incremental costs directly attributable to a proposed or actual offering of securities which are deferred at the end of the reporting period.

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Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

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