Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

INCOME TAXES - Valuation Allowance (Details)

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INCOME TAXES - Valuation Allowance (Details) - CNY (¥)
 9 Months Ended 12 Months Ended
Dec. 31, 2017
Mar. 31, 2017
Mar. 31, 2016
Movements of the valuation allowance      
Balance at the beginning of the period ¥ 41,179,348 ¥ 20,028,588 ¥ 3,882,555
Additions 12,376,506 21,150,760 16,146,033
Balance at the end of the period 53,555,854 41,179,348 20,028,588
Additional disclosures      
Unrecognized tax benefits 0 0 0
Interest and penalties recorded ¥ 0 ¥ 0 ¥ 0
Period of statute of limitations, if the underpayment of taxes is due to computational errors made by the taxpayer or the withholding agent 3 years    
Period of statute of limitations, if the underpayment is more than RMB 100,000 5 years    
Minimum amount of underpayment of taxes for statute of limitations to be extended to five years ¥ 100,000    
Period of statute of limitations for transfer pricing issues 10 years    
December 31, 2020      
Movements of the valuation allowance      
Tax loss carry forwards for PRC income tax purpose ¥ 41,458,163    
PRC      
Movements of the valuation allowance      
Tax loss carry forwards for PRC income tax purpose 153,051,262    
PRC | December 31, 2018      
Movements of the valuation allowance      
Tax loss carry forwards for PRC income tax purpose 4,996,057    
PRC | December 31, 2019      
Movements of the valuation allowance      
Tax loss carry forwards for PRC income tax purpose 5,438,101    
PRC | December 31, 2021      
Movements of the valuation allowance      
Tax loss carry forwards for PRC income tax purpose 42,390,834    
PRC | December 31, 2022      
Movements of the valuation allowance      
Tax loss carry forwards for PRC income tax purpose ¥ 58,768,107