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Note J - Revenue, Net (Details Textual) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Mar. 20, 2012	Jun. 30, 2023	Dec. 31, 2024	Dec. 31, 2023	May 07, 2021
Revenue from Contract with Customer, Including Assessed Tax			$ 23,612	$ 27,461
Arimoclomol Purchase Agreement [Member]
Contract with Customer, Liability, Revenue Recognized			9,100	8,700
Contract with Customer, Clawback Liability			5,700	5,100
Asset Acquisition, Consideration Transferred, Estimated Reserve Liability			12,600	12,200
License [Member] | AZSTARYS License Agreement [Member]
Contract with Customer, Liability, Revenue Recognized		$ 15,000	4,300	18,500
Deferred Revenue			0	0
OLPRUVA [Member]
Revenue from Contract with Customer, Including Assessed Tax			100	0
MIPLYFFA [Member]
Revenue from Contract with Customer, Including Assessed Tax			$ 10,100
Commave Therapeutics SA [Member] | License [Member] | AZSTARYS License Agreement [Member]
Revenue Recognition, Milestone Method, Additional Revenue to be Recognized					$ 590,000
Aquestive Therapeutics [Member] | License [Member] | AZSTARYS License Agreement [Member]
Royalty Revenue, Percent	10.00%		10.00%
Relief Therapeutics [Member] | License [Member]
Contract with Customer, Liability, Revenue Recognized			$ 0
Royalty Revenue, Percent			10.00%
Contract with Customer, Liability			$ 0	$ 0

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