Accounts Receivables (Details) |
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2024
USD ($)
|
Dec. 31, 2023
CNY (¥)
|
|---|---|---|---|---|---|
| Accounts Receivables | |||||
| Accounts receivables | ¥ 5,351,511 | $ 765,256 | ¥ 34,550,465 | ||
| Allowance for credit losses | (236) | (34) | (274,956) | $ (39,318) | ¥ (205,489) |
| Accounts receivables, net | ¥ 5,351,275 | $ 765,222 | ¥ 34,275,509 |
| X | ||||||||||
- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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