v3.26.1
Notes Payable (Details)
¥ in Thousands, $ in Thousands
6 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2026
CNY (¥)
Mar. 31, 2025
CNY (¥)
Mar. 31, 2026
CNY (¥)
Notes Payable [Line Items]        
Repayment of notes payable ¥ 60,231  
MMTEC, Inc. [Member]        
Notes Payable [Line Items]        
Promissory note       ¥ 647,439
Repayment of notes payable   ¥ 60,231  
Alpha Mind [Member]        
Notes Payable [Line Items]        
Interest rate percentage 3.00%     3.00%
Alpha Mind [Member] | MMTEC, Inc. [Member]        
Notes Payable [Line Items]        
Promissory note $ 153,000     ¥ 1,104,706
Alpha Mind [Member] | Burgeon Capital, Inc. [Member]        
Notes Payable [Line Items]        
Promissory note $ 27,000     ¥ 194,948
Alpha Mind Technology Limited [Member]        
Notes Payable [Line Items]        
Acquisition of issued and outstanding shares 100.00%     100.00%