Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 5,599 | $ 5,590 |
| Accumulated depreciation | (4,760) | (4,465) |
| Property and equipment, net | 839 | 1,125 |
| Office Furniture and Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 1,601 | 1,633 |
| Machinery and Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 1,663 | 1,480 |
| Leasehold Improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 2,294 | 2,294 |
| Vehicles [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 41 | 0 |
| Construction in Progress [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 0 | $ 183 |