Schedule of lease expenses consolidated statements of income and supplemental cash flow information (Details) - HKD ($) |
12 Months Ended | |
|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Leases | ||
| Operating lease expenses excluding short-term lease expense | $ 2,249,933 | $ 1,407,617 |
| Operating cash flows used in operating leases | 2,217,768 | 1,115,900 |
| Short-term lease cost | $ 808,499 | $ 990,697 |