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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