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Prepaid Expenses and Other Current Assets, Net (Details)	12 Months Ended
	Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)
Disclosure Text Block Supplement [Abstract]
Bad debt expense	¥ 237,704	$ 34,140		¥ 144,687
Bad debt write off	¥ 4,744,565	$ 681,240

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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