Quarterly report pursuant to Section 13 or 15(d)

Related Party Agreements (Narrative) (Details)

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Related Party Agreements (Narrative) (Details) - Fortress Biotech, Inc - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jan. 02, 2024
Jul. 22, 2016
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Related Party Transaction [Line Items]              
Shares issued for services (in shares) 353,086            
Parent Company | Management Services Agreement (MSA)              
Related Party Transaction [Line Items]              
Percentage of annual fees expense related to Management Services Agreement recorded in research and development expenses     50.00%     50.00%  
Percentage of annual fees expense related to Management Services Agreement recorded in general and administrative expenses     50.00%     50.00%  
Expenses from related party transaction     $ 100,000 $ 100,000 $ 300,000 $ 300,000  
Parent Company | Founders Agreement              
Related Party Transaction [Line Items]              
Shares issued for services (in shares)         575,191    
Percentage of fully diluted equity 2.50% 2.50%          
Expenses from related party transaction     $ 163,000 $ 0 $ 163,000 $ 0  
Research and development for licenses acquired             $ 500,000