Note 11 - Goodwill and Intangible Assets (Details Textual) |
9 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Sep. 30, 2025
USD ($)
|
|
| Goodwill, Impairment Loss | $ 0 | ||
| Number of Patents Granted | 70 | ||
| Impairment of Intangible Assets (Excluding Goodwill), Total | $ 0 | ||
| Intangible Asset, Finite-Lived, Amortization Expense | $ 1,901,000 | $ 1,622,000 | |
| Patents [Member] | |||
| Intangible Asset, Finite-Lived, Useful Life | 20 years | 20 years | |
| X | ||||||||||
- Definition Represents the number of patents granted in the United States. No definition available.
|
| X | ||||||||||
- Definition Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Useful life of finite-lived intangible asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of impairment loss from 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://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of impairment loss for finite- and indefinite-lived intangible assets and capitalized cost for software to be sold, leased, or marketed. Excludes goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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