ACCOUNTS RECEIVABLE, NET - Summary (Details) |
Dec. 31, 2025
CNY (¥)
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Dec. 31, 2025
USD ($)
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Dec. 31, 2024
CNY (¥)
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Dec. 31, 2023
CNY (¥)
|
Dec. 31, 2022
CNY (¥)
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|---|---|---|---|---|---|
| ACCOUNTS RECEIVABLE, NET | |||||
| Accounts receivable | ¥ 208,368,929 | ¥ 308,556,264 | |||
| Allowance for doubtful accounts | (170,996,885) | (176,634,845) | ¥ (169,038,710) | ¥ (29,593,693) | |
| Accounts receivable, net | ¥ 37,372,044 | $ 5,344,131 | ¥ 131,921,419 |
| 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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