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LOSS BEFORE TAXATION - Additional Information - (Details) - CNY (¥)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of LOSS BEFORE TAXATION [Line Items]      
Employee benefits expense ¥ 13,735,000 ¥ 19,427,000 ¥ 33,302,000
Adjustment For Inventory Reversal Of Written Down 99,237,000 2,301,000 56,766,000
Cost Of Inventories      
Disclosure of LOSS BEFORE TAXATION [Line Items]      
Employee benefits expense 4,065,000 7,554,000 19,867,000
Post-employment benefit expense, defined contribution plans 756,704 1,590,660 2,734,411
Operating Lease Payment 12,801,485 13,082,071 12,503,000
Reversal of inventory write-down (99,237,173) (2,301,000) (56,766,000)
Depreciation and amortisation expense ¥ 0 ¥ 0 ¥ 0