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Concentration - Schedules of Concentrations of Continuing Operations (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Feb. 28, 2025
CNY (¥)
Feb. 28, 2025
USD ($)
Feb. 29, 2024
CNY (¥)
Feb. 28, 2023
CNY (¥)
Feb. 28, 2025
USD ($)
Concentration Risk [Line Items]          
Cost of revenue from customer ¥ 203,941 $ 28,003 ¥ 79,951 ¥ 19,922  
Accounts payable 3,746       $ 514
Revenue | Customer Concentration Risk | Customer A          
Concentration Risk [Line Items]          
Revenues from customer       ¥ 7,381  
Concentration Risk, Percentage       22.00%  
Revenue | Customer Concentration Risk | Major Customers          
Concentration Risk [Line Items]          
Revenues from customer       ¥ 7,381  
Concentration Risk, Percentage       22.00%  
Accounts Receivable | Customer Concentration Risk | Customer B          
Concentration Risk [Line Items]          
Accounts Receivable from customer     ¥ 927    
Concentration Risk, Percentage     29.00%    
Accounts Receivable | Customer Concentration Risk | Customer C          
Concentration Risk [Line Items]          
Accounts Receivable from customer     ¥ 662    
Concentration Risk, Percentage     20.00%    
Accounts Receivable | Customer Concentration Risk | Customer D          
Concentration Risk [Line Items]          
Accounts Receivable from customer     ¥ 387    
Concentration Risk, Percentage     12.00%    
Accounts Receivable | Customer Concentration Risk | Customer E          
Concentration Risk [Line Items]          
Accounts Receivable from customer ¥ 438       60
Concentration Risk, Percentage 22.00% 22.00%      
Accounts Receivable | Customer Concentration Risk | Customer F          
Concentration Risk [Line Items]          
Accounts Receivable from customer ¥ 274       38
Concentration Risk, Percentage 13.00% 13.00%      
Accounts Receivable | Customer Concentration Risk | Major Customers          
Concentration Risk [Line Items]          
Accounts Receivable from customer ¥ 712   ¥ 1,976   98
Concentration Risk, Percentage 35.00% 35.00% 61.00%    
Cost of revenue | Supplier Concentration Risk | Supplier G          
Concentration Risk [Line Items]          
Cost of revenue from customer ¥ 33,845 $ 4,647      
Concentration Risk, Percentage 17.00% 17.00%      
Cost of revenue | Supplier Concentration Risk | Major Suppliers          
Concentration Risk [Line Items]          
Cost of revenue from customer ¥ 33,845 $ 4,647      
Concentration Risk, Percentage 17.00% 17.00%      
Accounts Payable | Supplier Concentration Risk | Supplier G          
Concentration Risk [Line Items]          
Accounts payable ¥ 2,136       293
Concentration Risk, Percentage 57.00% 57.00%      
Accounts Payable | Supplier Concentration Risk | Supplier H          
Concentration Risk [Line Items]          
Accounts payable ¥ 796       109
Concentration Risk, Percentage 21.00% 21.00%      
Accounts Payable | Supplier Concentration Risk | Major Suppliers          
Concentration Risk [Line Items]          
Accounts payable ¥ 2,932       $ 402
Concentration Risk, Percentage 78.00% 78.00%