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

Short-Term Loans - Additional Information (Details)

v3.21.1
Short-Term Loans - Additional Information (Details)
1 Months Ended 5 Months Ended 12 Months Ended
Mar. 31, 2021
CNY (¥)
Jun. 30, 2018
CNY (¥)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2020
USD ($)
Aug. 06, 2019
CNY (¥)
Jul. 31, 2018
CNY (¥)
Short Term Debt [Line Items]                    
Short-term borrowings from bank     ¥ 4,991,000 ¥ 6,801,000   ¥ 4,991,000   $ 1,042,299    
Repayment of short term loan       17,808,000 $ 2,729,195 9,000,000 ¥ 15,000,000      
Other short-term borrowings       4,801,000            
Short-Term Loan | Huanqiuyimeng                    
Short Term Debt [Line Items]                    
Short-term borrowings from bank       13,327,000         ¥ 13,991,000  
Repayment of short-term borrowings     9,000,000 16,318,000            
Interest expense accrued     ¥ 164,930 207,697            
Short-term borrowings outstanding amount       ¥ 2,000,000   ¥ 4,991,000        
Short-Term Loan | Huanqiuyimeng | Subsequent Event                    
Short Term Debt [Line Items]                    
Repayment of short term loan ¥ 2,000,000                  
4.35% Interest loan                    
Short Term Debt [Line Items]                    
Interest rate (as a percent)       4.35%       4.35%    
Other short-term borrowings       ¥ 3,000,000            
Jack Huang | Commercial Loan Facility (the "Facility")                    
Short Term Debt [Line Items]                    
Term of commercial loan facility   3 years                
Maximum borrowing capacity   ¥ 15,000,000                
ATA Education | Commercial Loan Facility (the "Facility")                    
Short Term Debt [Line Items]                    
Pledge agreement period   3 years                
Interest rate (as a percent)   6.525%                
Short-term borrowings from bank                   ¥ 15,000,000
Mr. Xiaofeng Ma                    
Short Term Debt [Line Items]                    
Other short-term borrowings       631,000            
CEO of Muhua Shangce                    
Short Term Debt [Line Items]                    
Other short-term borrowings       ¥ 1,260,000            
CEO of Muhua Shangce | 2.00% Interest Loan                    
Short Term Debt [Line Items]                    
Interest rate (as a percent)       2.00%       2.00%    
Other short-term borrowings       ¥ 500,000            
CEO of Muhua Shangce | No Interest                    
Short Term Debt [Line Items]                    
Other short-term borrowings       760,000            
Mr. Xiaofeng Ma                    
Short Term Debt [Line Items]                    
Other short-term borrowings       500,000            
Three Third Party Companies                    
Short Term Debt [Line Items]                    
Other short-term borrowings       900,000            
CEO of Muhua Shangce and Three Third Party Companies                    
Short Term Debt [Line Items]                    
Repayment of other short-term borrowings       ¥ 1,490,000