v3.26.1
Notes Payable (Details)
Mar. 31, 2026
USD ($)
Mar. 31, 2026
CNY (¥)
Mar. 31, 2025
USD ($)
Mar. 31, 2025
CNY (¥)
Debt Instrument [Line Items]        
Bank notes payable [1] $ 22,669   $ 10,386,612  
Notes Payable to Banks [Member]        
Debt Instrument [Line Items]        
Bank notes payable 20,000.00      
Hangzhou United Bank [Member]        
Debt Instrument [Line Items]        
Bank notes payable 22,669 ¥ 156,371 10,386,612 ¥ 75,372,524
Restricted cash 8,519 ¥ 58,762 5,761,294 41,807,982
Credit line aggregate from HUB 5,800,000      
Hangzhou United Bank [Member] | Notes Payable to Banks [Member]        
Debt Instrument [Line Items]        
Restricted cash 10,000.00      
Collateral amount     $ 3,775,821 ¥ 27,400,000
Credit line aggregate from HUB 5,790,000      
Line of credit total $ 5,810,000      
[1] As of March 31, 2025, the Company had $10,386,612 (RMB75,372,524) of notes payable from HUB. The Company is required to hold restricted cash in the amount of $5,761,294 (RMB41,807,982 ) with HUB as collateral against these bank notes. Included in the restricted cash is a total of $3,775,821 three-year deposit (RMB27,400,000) deposited into HUB as a collateral for current and future notes payable from HUB.