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

LONG-TERM INVESTMENTS - Equity Method Investments (Details)

v3.19.1
LONG-TERM INVESTMENTS - Equity Method Investments (Details)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
USD ($)
item
$ / shares
shares
Dec. 31, 2017
CNY (¥)
Dec. 31, 2017
CNY (¥)
Dec. 31, 2018
CNY (¥)
Mar. 31, 2017
CNY (¥)
Equity method investments          
Share of loss recognized     ¥ 1,395,234   ¥ 2,837,834
Brilent Inc. ("Brilent")          
Equity method investments          
Share of loss recognized     1,395,234 ¥ 0 ¥ 2,837,834
Impairment loss   ¥ 4,757,972      
Equity method investments   ¥ 0 ¥ 0 ¥ 0  
Brilent Inc. ("Brilent") | ATA BVI          
Equity method investments          
Percentage of equity interest 15.47%        
Number of board seat held | item 1        
Total number of board seat | item 6        
Brilent Inc. ("Brilent") | ATA BVI | Preferred Shares          
Equity method investments          
Number of shares purchased | shares 2,156,721        
Purchase price (USD per share) | $ / shares $ 0.6955        
Total consideration | $ $ 1.5