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

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash, cash equivalents, restricted cash and short term loan (Details)

v3.8.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash, cash equivalents, restricted cash and short term loan (Details)
May 19, 2016
USD ($)
Dec. 31, 2017
CNY (¥)
Mar. 31, 2017
CNY (¥)
Jul. 31, 2016
CNY (¥)
May 19, 2016
CNY (¥)
Cash, cash equivalents, restricted cash and short term loan          
Borrowed amount     ¥ 3,449,650    
Commercial Loan Facility (the "Facility") | ATA BVI          
Cash, cash equivalents, restricted cash and short term loan          
Term of commercial loan facility 2 years        
Maximum borrowing capacity | $ $ 4,000,000        
Maturity date of each drawdown 12 months        
Maximum maturity date of each drawdown prior to the expiration date of the corresponding SBLC 5 days        
Borrowed amount       ¥ 3,449,650  
Commercial Loan Facility (the "Facility") | ATA BVI | Restricted cash          
Cash, cash equivalents, restricted cash and short term loan          
Standby Letter of Credit ("SBLC") used to secure the Facility   ¥ 0     ¥ 30,000,000
Commercial Loan Facility (the "Facility") | 3-month LIBOR | ATA BVI          
Cash, cash equivalents, restricted cash and short term loan          
Annual interest rate (as a percentage) 2.50%