v3.25.2
Principal Accounting Policies (Details)
¥ in Thousands, $ in Thousands
6 Months Ended 12 Months Ended
Sep. 30, 2024
CNY (¥)
Sep. 30, 2024
USD ($)
Sep. 30, 2023
CNY (¥)
Mar. 31, 2024
CNY (¥)
segment
Mar. 31, 2024
USD ($)
segment
Mar. 31, 2023
CNY (¥)
Mar. 31, 2022
CNY (¥)
Mar. 31, 2024
USD ($)
Apr. 01, 2023
CNY (¥)
Apr. 01, 2022
CNY (¥)
Principal Accounting Policies [Line Items]                    
Short-term investments         ¥ 69,797      
Short-term borrowings           64,000        
Cumulative-effect to retained earnings       ¥ 2,800            
Reporting unit       1 1          
Total contract liabilities                 ¥ 4,500 ¥ 7,000
Recognized revenue       ¥ 3,700   3,000        
Unearned revenue       1,600            
Cost of revenue ¥ 197,961 $ 28,209 ¥ 311,435 568,615 $ 78,752 858,608 ¥ 943,698      
Advertising expenses       26,000   44,000 81,000      
Research and development expenses       2,200   3,700 11,300      
Government subsidies       ¥ 3,000   300 200      
Reportable segment (in segment) | segment       1 1          
Cost of Product Sales [Member]                    
Principal Accounting Policies [Line Items]                    
Cost of revenue       ¥ 560,100   842,700 930,400      
Cost of Services [Member]                    
Principal Accounting Policies [Line Items]                    
Cost of revenue       ¥ 8,500   ¥ 15,900 ¥ 13,300      
US [Member]                    
Principal Accounting Policies [Line Items]                    
Convenience translation exchange rate published by the federal reserve board       1       1    
China, Yuan Renminbi                    
Principal Accounting Policies [Line Items]                    
Convenience translation exchange rate published by the federal reserve board       7.2203       7.2203    
US [Member]                    
Principal Accounting Policies [Line Items]                    
Foreign currency exchange rate published by people’s bank of china           1        
China, Yuan Renminbi                    
Principal Accounting Policies [Line Items]                    
Foreign currency exchange rate published by people’s bank of china       7.095   6.8717   7.095