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Xoma (Details Narrative) - USD ($)
$ in Thousands
Jun. 21, 2023
Mar. 31, 2024
Milestone payment, amount $ 6,000  
Payments for royalities $ 6,000  
XOMA [Member]    
Assignment and assumption agreement description Pursuant to the Assignment Agreement, the Company is entitled to receive (i) a one-time payment of $1 million upon acceptance of a re-submission of an NDA to the FDA for arimoclomol, and (ii) a one-time payment of $1 million upon the first invoiced sale in certain territories of a pharmaceutical product derived from arimoclomol as an active pharmaceutical ingredient, subject to the receipt of the applicable regulatory approval required to sell such a product in such countries. In January 2024, Zevra announced the FDA had accepted the NDA for arimoclomol and the Company received the one-time payment of $1 million in February 2024 recognized such net proceeds of $1.0 million as other income in the statement of operations for the period ended March 31, 2024  
Royalty Purchase Agreement [Member]    
Payments for royalities $ 1,000  
Aldrorubicin And Arimoclomol [Member]    
Legal fees 5,000  
Arimoclomol [Member]    
Milestone payment, amount   $ 3,650
Commercial sale, amount 1,000  
Aldoxorubicin [Member]    
Commercial sale, amount $ 4,000