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ORDINARY SHARES PURCHASE WARRANTS ISSUED TO INVESTORS (Details)
1 Months Ended
Jun. 30, 2020
item
$ / shares
shares
May 31, 2020
item
Dec. 31, 2021
CNY (¥)
¥ / shares
shares
Dec. 31, 2021
USD ($)
¥ / shares
shares
Jun. 30, 2021
CNY (¥)
¥ / shares
shares
Jun. 30, 2021
USD ($)
¥ / shares
shares
Jun. 14, 2021
¥ / shares
shares
May 31, 2021
$ / shares
Jun. 26, 2020
USD ($)
$ / shares
shares
May 21, 2020
USD ($)
shares
Class of Warrant or Right [Line Items]                    
Number of offerings | item 2 2                
Number of warrants to purchase ordinary shares 911,112       29,520,000 29,520,000     1,680,000  
Exercise price of warrants (in dollars per share) | $ / shares $ 1.25             $ 2.25 $ 1.25  
Fair value of warrants | $       $ 22,880,000         $ 1,639,333 $ 1,689,389
Fair value of the warrant liability     ¥ 42,239,816 $ 6,640,000 ¥ 190,635,850 $ 5,340,000        
Class A ordinary shares                    
Class of Warrant or Right [Line Items]                    
Number of warrants to purchase ordinary shares             6,014,102   1,680,000 911,112
Second offering [Member]                    
Class of Warrant or Right [Line Items]                    
Number of warrants to purchase ordinary shares     8,814,102 8,814,102            
Class of Warrant or Right, Outstanding     34,860,000 34,860,000            
Risk-free interest rate                    
Class of Warrant or Right [Line Items]                    
Warrants outstanding, measurement input     1.25 1.25 0.95 0.95 0.90   0.35 0.40
Warrant life                    
Class of Warrant or Right [Line Items]                    
Warrants outstanding, measurement input     5.0 5.0 5.5 5.5 5.5      
Warrants and rights outstanding, term                 5 years 6 months 5 years 6 months
Volatility                    
Class of Warrant or Right [Line Items]                    
Warrants outstanding, measurement input     109 109 111 111 111   104.26 99.50
Expected dividend yield                    
Class of Warrant or Right [Line Items]                    
Warrants outstanding, measurement input                 0 0