v3.26.1
Summary of significant accounting policies (Details) - processor
3 Months Ended 12 Months Ended
Apr. 30, 2026
Jan. 31, 2026
Concentration Risk [Line Items]    
Number of third-party payment processors 2  
Two Entities | Revenue Benchmark | Customer Concentration Risk    
Concentration Risk [Line Items]    
Concentration risk, percentage 10.00%  
One Entity | Revenue Benchmark | Customer Concentration Risk    
Concentration Risk [Line Items]    
Concentration risk, percentage   10.00%
Minimum    
Concentration Risk [Line Items]    
Customer payment period (in days) 30 days  
Settlement period (in days) 1 day  
Maximum    
Concentration Risk [Line Items]    
Customer payment period (in days) 60 days  
Settlement period (in days) 2 days