v3.25.2
Fair value measurements (Details) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Platform Operator, Crypto Asset [Line Items]    
Financial Instruments, Owned, at Fair Value $ 466,500
Fair Value, Inputs, Level 1 [Member]    
Platform Operator, Crypto Asset [Line Items]    
Financial Instruments, Owned, at Fair Value $ 466,500