No definition available.

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- Definition

The amount of advance from customers.

+ References

No definition available.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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- Definition

Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 330
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- Definition

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

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Amount of selling and marketing expense classified as other.

+ References

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- Definition

Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Summary of Significant Accounting Policies (Details)	6 Months Ended
Summary of Significant Accounting Policies (Details)	Jun. 30, 2023 CNY (¥)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 CNY (¥)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 CNY (¥)
Summary of Significant Accounting Policies [Line Items]
Cash and cash equivalents	¥ 16,839,750			$ 2,330,503	¥ 87,811,272
Restricted cash	417,565			57,788	48,112
Impairment of long-lived assets
Advance from cusromers	106,012,404			$ 14,671,373	¥ 124,469,097
Advance from customers as revenue	20,684,360		361,192,225
Inventory write-down	73,273,361	$ 10,140,519
Advertising and promotion cost	¥ 1,051,572		3,212,940
United States of America, Dollars
Summary of Significant Accounting Policies [Line Items]
Translations of amounts	1			1
China, Yuan Renminbi
Summary of Significant Accounting Policies [Line Items]
Translations of amounts	7.2258			7.2258
Shipping and Handling [Member]
Summary of Significant Accounting Policies [Line Items]
Selling and marketing expenses	¥ 1,795,735		¥ 2,891,328