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SHORT-TERM BANK LOANS - Components (Details)
Jun. 30, 2022
CNY (¥)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
CNY (¥)
Short-term Debt [Line Items]      
Short-term bank loans ¥ 10,000,000.0 $ 1,493,045 ¥ 15,000,000
Bank of Nanjing      
Short-term Debt [Line Items]      
Short-term bank loans     4,000,000
Beijing Rural Commercial Bank      
Short-term Debt [Line Items]      
Short-term bank loans ¥ 10,000,000 $ 1,493,045 10,000,000
China Construction Bank      
Short-term Debt [Line Items]      
Short-term bank loans     ¥ 1,000,000