SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment, net (Details) |
Sep. 30, 2025 |
|---|---|
| Property and buildings | |
| PROPERTY AND EQUIPMENT, NET | |
| Estimated useful lives (in years) | 25 years |
| Machinery and equipment | |
| PROPERTY AND EQUIPMENT, NET | |
| Estimated useful lives (in years) | 5 years |
| Automobiles | |
| PROPERTY AND EQUIPMENT, NET | |
| Estimated useful lives (in years) | 4 years |
| Office and electric equipment | |
| PROPERTY AND EQUIPMENT, NET | |
| Estimated useful lives (in years) | 3 years |