Note 14 - Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Net revenue | $ 7 | $ 88 | $ 25 | $ 151 | ||
| Cost of Sales | 6 | 47 | 14 | 60 | ||
| Loss from continuing operations, net of income taxes | (3,962) | (3,765) | (7,397) | (7,184) | ||
| Single Reportable Segment [Member] | ||||||
| Net revenue | 7 | 88 | 25 | 151 | ||
| Cost of Sales | 6 | 47 | 14 | 59 | ||
| Other vendor and payroll expenses | 3,670 | 3,525 | 6,437 | 6,228 | ||
| Depreciation and amortization | 1 | 97 | 11 | 195 | ||
| Stock-based compensation expense | 289 | (3) | 731 | 588 | ||
| Other segment items(1) | [1] | 3 | 187 | 229 | 265 | |
| Loss from continuing operations, net of income taxes | $ (3,962) | $ (3,765) | $ (7,397) | $ (7,184) | ||
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| X | ||||||||||
- Definition The amount of other segment income (expense). No definition available.
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| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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