Summary of significant accounting policies - Loans receivable, net (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Summary of significant accounting policies | |||
| Credit losses recovered | $ 0 | $ (65,507) | $ 0 |
| Provisions for credit losses | $ 0 | $ 0 | $ 275,500 |