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Leases - Additional Information (Details)
12 Months Ended
Feb. 29, 2024
CNY (¥)
Feb. 29, 2024
USD ($)
Feb. 28, 2023
CNY (¥)
Feb. 28, 2023
USD ($)
Feb. 28, 2022
CNY (¥)
Feb. 28, 2022
USD ($)
Leases [Abstract]            
Operating lease expenses ¥ 3,965,000 $ 551,000 ¥ 4,769,000   ¥ 43,959,000  
Short term lease expenses ¥ 4,547,000 $ 632,000 91,000   108,000  
Operating lease, lease not yet commenced, description As of February 29, 2024, the Group did not have additional operating leases that have not yet commenced As of February 29, 2024, the Group did not have additional operating leases that have not yet commenced        
Impairment loss for operating lease right-of-use assets ¥ 0 $ 0 ¥ 0 $ 0 ¥ 0 $ 0