Note 4 - Discontinued Operations - Schedule of Discontinued Operations (Details) - Discontinued Operations, Disposed of by Sale [Member] - Cesium-131 Business [Member] - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Liabilities held for sale of discontinued operations, current | ||||
| Sales, net | $ 0 | $ 205 | $ 0 | $ 2,178 |
| Cost of sales | (332) | 162 | (332) | 1,564 |
| Gross profit | 332 | 43 | 332 | 614 |
| Research and development | 0 | 21 | 0 | 69 |
| Sales and marketing | 0 | 138 | 0 | 941 |
| General and administrative | 0 | 313 | 0 | 494 |
| (Gain) loss recognized on assets held for sale | (182) | 61 | (182) | 59 |
| Total operating expenses | (182) | 533 | (182) | 1,563 |
| Total gain (loss) from discontinued operations | $ 514 | $ (490) | $ 514 | $ (949) |
| X | ||||||||||
- Definition Disposal group including discontinued operation, costs of goods sold and estimated reduction of reserve. No definition available.
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| X | ||||||||||
- Definition Amount of research and development expense attributable to disposal group, including, but not limited to, discontinued operation. No definition available.
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| X | ||||||||||
- Definition Amount of sales and marketing expense attributable to disposal group, including, but not limited to, discontinued operation. No definition available.
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| X | ||||||||||
- Definition Amount of general and administrative expense attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of gross profit attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of operating expense attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Details
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- Details
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