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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

X

- 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.

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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.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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