XML 200 R11.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Intangible Assets | 3 Months Ended
--- | ---
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets | INTANGIBLE ASSETS Intangible assets subject to amortization include patents and a license agreement capitalized as part of the Novartis RNAi asset acquisition in March 2015. The following table presents the components of intangible assets:
| Gross Carrying Amount |  | Accumulated Amortization |  | Impairment |  | Net Carrying Amount |  | Useful Lives
| (in thousands) |  | (in years)
As of December 31, 2024 |  |  |  |  |  |  |  |  |
Patents | $ | 21,728 |  |  | $ | 15,261 |  |  | $ | — |  |  | $ | 6,467 |  |  | 14
License | 3,129 |  |  | 1,459 |  |  | — |  |  | 1,670 |  |  | 21
Total intangible assets, net | $ | 24,857 |  |  | $ | 16,720 |  |  | $ | — |  |  | $ | 8,137 |  |  |
As of September 30, 2024 |  |  |  |  |  |  |  |  |
Patents | $ | 21,728 |  |  | $ | 14,873 |  |  | $ | — |  |  | $ | 6,855 |  |  | 14
License | 3,129 |  |  | 1,422 |  |  | — |  |  | 1,707 |  |  | 21
Total intangible assets, net | $ | 24,857 |  |  | $ | 16,295 |  |  | $ | — |  |  | $ | 8,562 |  |  |
Intangible assets are reviewed annually for impairment and more frequently if potential impairment indicators exist. No impairment indicators were identified during the three months ended December 31, 2024 and 2023. Intangible assets with definite useful lives are amortized on a straight-line basis over their useful lives. Intangible assets amortization expense was $0.4 million for the three months ended December 31, 2024 and 2023. None of the intangible assets with definite useful lives are anticipated to have a residual value. The following table presents the estimated future amortization expense related to intangible assets as of December 31, 2024:
|  | Amortization Expense
Year Ending September 30, |  | (in thousands)
2025 (remainder) |  | $ | 1,275 |
2026 |  | 1,700 |
2027 |  | 1,700 |
2028 |  | 1,700 |
2029 |  | 795 |
2030 and thereafter |  | 967 |
Total |  | $ | 8,137 |

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481283/985-20-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/985-20/tableOfContent + Details
Name: | us-gaap_IntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration