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Note S - Goodwill & Intangible Assets (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Goodwill | $ 4,701 | $ 4,701
Indefinite-Lived Intangible Assets (Excluding Goodwill) | 2,000 | 2,000
Finite-Lived Intangible Assets, Net | $ 61,300 | $ 67,200
Finite-Lived Intangible Asset, Useful Life (Year) | 13 years | 11 years
Amortization of Intangible Assets | $ 6,235 | $ 772
Payments to Acquire Intangible Assets | 6,000 | (0)
Impairment of Intangible Assets, Finite-Lived | 0 | 0
Intangible Assets, Amortization Period [Member] |  |
Finite-Lived Intangible Assets, Net | 200 |
Amortization of Intangible Assets | $ 200 |
Patents [Member] |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 13 years |
Patents [Member] | XOMA License Agreement [Member] |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 5 years |
Amortization of Intangible Assets | $ 300 |
Patents [Member] | XOMA License Agreement [Member] | Capitalization, Royalty Expense [Member] |  |
Payments to Acquire Intangible Assets | 6,000 |
OLPRUVA [Member] |  |
Finite-Lived Intangible Assets, Net | $ 61,300 | $ 67,200

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 + Details
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