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TRADE ACCOUNTS RECEIVABLE, NET - Additional Information (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Jun. 30, 2020 CNY (¥)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Provision for credit losses | ¥ (5,671,285) | $ (891,513) | ¥ (3,697,024) |
Percentage of net outstanding balance collected | 53.70% | 53.70% |  |
Third Party. |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Provision for doubtful accounts of accounts receivable due from third parties | ¥ (2,647,068) | $ (416,113) |  | ¥ 3,730,606
Net recovery of provision for credit losses made for accounts receivable due from related-party | 2,647,068 | 416,113 | 3,093,347 |
Related Party |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Provision for credit losses | 0 |  |  |
Net recovery of provision for credit losses made for accounts receivable due from related-party |  |  | ¥ 340,992 |
Amount of net outstanding balance collected | ¥ 22,400,000 | $ 3,500,000 |  |

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