Note 2 - Summary of Significant Accounting Policies - Goodwill (Details) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Dec. 31, 2022 |
Sep. 30, 2022 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Beginning Balance | $ 50,263,000 | $ 50,263,000 | $ 2,565,000 | |
| Acquisitions (See Note 5) | 0 | 47,698,000 | ||
| Impairment charges | $ (8,300,000) | $ (42,000,000.0) | (50,263,000) | 0 |
| Ending Balance | $ 0 | $ 0 | $ 50,263,000 | |
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing 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/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| 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
|