Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Goodwill and Intangible Assets | ||
| Goodwill carrying amount | $ 24,759 | $ 46,008 |
| Goodwill | 76,261 | 75,510 |
| Accumulated impairment charges | (51,502) | $ (29,502) |
| Addition from business acquisition [Member] | ||
| Goodwill and Intangible Assets | ||
| Goodwill carrying amount | 751 | |
| Goodwill | 751 | |
| Accumulated impairment charges | 0 | |
| Impairment Adjustment [Member] | ||
| Goodwill and Intangible Assets | ||
| Goodwill carrying amount | (22,000) | |
| Goodwill | 0 | |
| Accumulated impairment charges | $ (22,000) | |
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount, before accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Includes amount, before amortization expense and impairment loss, of goodwill for private company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|