Note 5 - Leases (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Sep. 30, 2024 |
Jun. 30, 2025 |
|
| Operating Lease, Right-of-Use Asset | $ 1,014 | $ 763 |
| Office in Novato, California [Member] | ||
| Lessee, Operating Lease, Renewal Term (Year) | 3 years | |
| Operating Lease, Right-of-Use Asset | $ 1,100 | |
| Lease Expiration Date | Jul. 31, 2027 | |
| Other Long-term Operating Leases [Member] | ||
| Contractual Obligation | $ 0 |
| X | ||||||||||
- Definition Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Date which lease or group of leases is set to expire, in YYYY-MM-DD format. No definition available.
|
| X | ||||||||||
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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