Note 10 - Goodwill and Intangibles (Details Textual) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
|
Mar. 31, 2022
USD ($)
|
Mar. 31, 2022
USD ($)
|
Sep. 30, 2021
USD ($)
|
Mar. 31, 202 |
|
| Goodwill, Impairment Loss | $ 0 | $ 0 | ||
| Number of Patents Granted | 31 | |||
| Impairment of Intangible Assets (Excluding Goodwill), Total | $ 0 | $ 0 | ||
| Patents [Member] | ||||
| Finite-Lived Intangible Asset, Useful Life (Year) | 20 years |
| X | ||||||||||
- Definition Represents the number of patents granted in the United States. No definition available.
|
| X | ||||||||||
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|