| Note 11 - Goodwill and Intangibles (Details Textual) $ in Thousands | 12 Months Ended | ||
|---|---|---|---|
| Sep. 30, 2022  USD ($) | Mar. 31, 2023 | Dec. 31, 2022 | |
| Goodwill, Impairment Loss | $ 0 | ||
| Number of Patents Granted | 41 | ||
| Impairment of Intangible Assets (Excluding Goodwill), Total | $ 0 | ||
| Patents [Member] | |||
| Finite-Lived Intangible Asset, Useful Life | 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://fasb.org/us-gaap/role/ref/legacyRef 
 | 
| 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 
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