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Summary of Significant Accounting Policies - Additional Information (Details)
 12 Months Ended
Feb. 28, 2025
CNY (¥)
Segment
Feb. 28, 2025
USD ($)
Segment
Feb. 29, 2024
CNY (¥)
Segment
Feb. 29, 2024
USD ($)
Segment
Feb. 28, 2023
CNY (¥)
Segment
Feb. 28, 2023
USD ($)
Segment
Feb. 28, 2025
USD ($)
Feb. 29, 2024
USD ($)
Feb. 28, 2022
CNY (¥)
Significant Accounting Policies [Line Items]                  
Cash and cash equivalents and restricted cash denominated in RMB ¥ 339,295,000   ¥ 302,246,000   ¥ 177,058,000   $ 46,589,000 $ 41,501,000 ¥ 272,702,000
Foreign currency translation exchange rate 7.2828           7.2828    
Cash and cash equivalents ¥ 210,771,000   180,198,000   175,696,000   $ 28,941,000    
Unrealized holding gain (loss) in investments 2,022,000 $ 278,000 3,910,000   (3,794,000)        
Realized gain (loss) in investments (3,062,000) (420,000) 3,207,000   1,867,000        
Impairment loss for equity investments without readily determinable fair value 0   500,000   0        
Impairment loss on intangible asset 0   0   0        
Impairment loss of property and equipment recognized 0   3,674,000   0        
Loss from goodwill impairment 0   0   0        
Refund liability 1,039,000   454,000       143,000    
Contract assets 0   0            
Contract liabilities 27,941,000   18,023,000       3,837,000    
Deferred revenue recognized     18,023,000   7,269,000     $ 2,475,000 ¥ 6,492,000
Advertising expenses ¥ 7,129,000 $ 979,000 4,417,000   2,708,000        
Operating lease, option to extend The Group’s leases have lease terms of up to eight years, which includes lessee options to extend the lease, only to the extent it is reasonably certain that the Group will exercise such extension options. The Group’s leases have lease terms of up to eight years, which includes lessee options to extend the lease, only to the extent it is reasonably certain that the Group will exercise such extension options.              
Operating lease impairment ¥ 0 $ 0 0 $ 0 0 $ 0      
Income recognized from government subsidies ¥ 1,413,000 $ 194,000 ¥ 728,000   ¥ 1,412,000        
Description of uncertain income tax position An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained.              
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] srt:BoardOfDirectorsChairmanMember, srt:ChiefExecutiveOfficerMember srt:BoardOfDirectorsChairmanMember, srt:ChiefExecutiveOfficerMember              
Number of operating segments | Segment 3 3 3 3 3 3      
Restricted Cash Frozen in Relation to a Legal Case                  
Significant Accounting Policies [Line Items]                  
Restricted cash ¥ 496,000   ¥ 0       68,000    
Restricted Cash under Government Regulations                  
Significant Accounting Policies [Line Items]                  
Restricted cash 579,000   576,000       80,000    
Restricted Cash as Guarantee Deposits for Long-term Borrowings                  
Significant Accounting Policies [Line Items]                  
Restricted cash ¥ 127,449,000   121,472,000       $ 17,500,000    
Maximum                  
Significant Accounting Policies [Line Items]                  
Operating lease, lease term 12 months           12 months    
Amount Due from Related Parties and Other Non-current Assets                  
Significant Accounting Policies [Line Items]                  
Allowance for doubtful accounts ¥ 652,000 $ 501,000 ¥ 4,755,000            
VIEs                  
Significant Accounting Policies [Line Items]                  
Percentage of revenue contributed of consolidated revenue 99.80% 99.80% 99.30% 99.30% 97.60% 97.60%      
Percentage of assets accounted of audited consolidated assets 33.60%   13.60%       33.60% 13.60%  
Percentage of liabilities accounted of audited consolidated liabilities 95.80%   65.00%       95.80% 65.00%  
Assets held only to settle obligations ¥ 0                
Cash and cash equivalents and restricted cash denominated in RMB ¥ 103,875,000   ¥ 102,503,000       $ 14,263,000